Home / 22,465.40-31,001.10-13,511.18

Finding the Fourth Proportional to 22,465.40, 31,001.10 and 13,511.18

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Solution

The fourth proportional to 22,465.40, 31,001.10 and 13,511.18 is: 18,644.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,465.40 : 31,001.10 = 13,511.18 : x
  2. Step 2: Convert to fraction form
    22,465.40/31,001.10 = 13,511.18/x
  3. Step 3: Cross multiply
    22,465.40x = 31,001.10 × 13,511.18
  4. Step 4: Simplify right side
    22,465.40x = 418,861,287.29
  5. Step 5: Solve for x
    x = 418,861,287.29/22,465.40
  6. Step 6: Final answer
    x = 18,644.73

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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.