Home / 22,753.88-31,402.18-12,685.58

Finding the Fourth Proportional to 22,753.88, 31,402.18 and 12,685.58

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Solution

The fourth proportional to 22,753.88, 31,402.18 and 12,685.58 is: 17,507.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,753.88 : 31,402.18 = 12,685.58 : x
  2. Step 2: Convert to fraction form
    22,753.88/31,402.18 = 12,685.58/x
  3. Step 3: Cross multiply
    22,753.88x = 31,402.18 × 12,685.58
  4. Step 4: Simplify right side
    22,753.88x = 398,354,866.56
  5. Step 5: Solve for x
    x = 398,354,866.56/22,753.88
  6. Step 6: Final answer
    x = 17,507.12

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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.