Home / 22,228.47-30,675.95-12,156.74

Finding the Fourth Proportional to 22,228.47, 30,675.95 and 12,156.74

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Solution

The fourth proportional to 22,228.47, 30,675.95 and 12,156.74 is: 16,776.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,228.47 : 30,675.95 = 12,156.74 : x
  2. Step 2: Convert to fraction form
    22,228.47/30,675.95 = 12,156.74/x
  3. Step 3: Cross multiply
    22,228.47x = 30,675.95 × 12,156.74
  4. Step 4: Simplify right side
    22,228.47x = 372,919,548.40
  5. Step 5: Solve for x
    x = 372,919,548.40/22,228.47
  6. Step 6: Final answer
    x = 16,776.66

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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.