Home / 22,489.80-31,038.54-13,541.76

Finding the Fourth Proportional to 22,489.80, 31,038.54 and 13,541.76

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Solution

The fourth proportional to 22,489.80, 31,038.54 and 13,541.76 is: 18,689.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,489.80 : 31,038.54 = 13,541.76 : x
  2. Step 2: Convert to fraction form
    22,489.80/31,038.54 = 13,541.76/x
  3. Step 3: Cross multiply
    22,489.80x = 31,038.54 × 13,541.76
  4. Step 4: Simplify right side
    22,489.80x = 420,316,459.43
  5. Step 5: Solve for x
    x = 420,316,459.43/22,489.80
  6. Step 6: Final answer
    x = 18,689.20

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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.