Home / 22,215.45-30,658.14-12,144.57

Finding the Fourth Proportional to 22,215.45, 30,658.14 and 12,144.57

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Solution

The fourth proportional to 22,215.45, 30,658.14 and 12,144.57 is: 16,759.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,215.45 : 30,658.14 = 12,144.57 : x
  2. Step 2: Convert to fraction form
    22,215.45/30,658.14 = 12,144.57/x
  3. Step 3: Cross multiply
    22,215.45x = 30,658.14 × 12,144.57
  4. Step 4: Simplify right side
    22,215.45x = 372,329,927.30
  5. Step 5: Solve for x
    x = 372,329,927.30/22,215.45
  6. Step 6: Final answer
    x = 16,759.95

Related Problems

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Half scale
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Double scale
Find fourth proportional to 22,216.45, 30,659.52 and 12,145.57
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.