Home / 22,235.94-30,680.44-13,281.66

Finding the Fourth Proportional to 22,235.94, 30,680.44 and 13,281.66

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Solution

The fourth proportional to 22,235.94, 30,680.44 and 13,281.66 is: 18,325.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,235.94 : 30,680.44 = 13,281.66 : x
  2. Step 2: Convert to fraction form
    22,235.94/30,680.44 = 13,281.66/x
  3. Step 3: Cross multiply
    22,235.94x = 30,680.44 × 13,281.66
  4. Step 4: Simplify right side
    22,235.94x = 407,487,139.53
  5. Step 5: Solve for x
    x = 407,487,139.53/22,235.94
  6. Step 6: Final answer
    x = 18,325.61

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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.