Home / 22,610.13-31,201.98-12,540.11

Finding the Fourth Proportional to 22,610.13, 31,201.98 and 12,540.11

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Solution

The fourth proportional to 22,610.13, 31,201.98 and 12,540.11 is: 17,305.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,610.13 : 31,201.98 = 12,540.11 : x
  2. Step 2: Convert to fraction form
    22,610.13/31,201.98 = 12,540.11/x
  3. Step 3: Cross multiply
    22,610.13x = 31,201.98 × 12,540.11
  4. Step 4: Simplify right side
    22,610.13x = 391,276,042.71
  5. Step 5: Solve for x
    x = 391,276,042.71/22,610.13
  6. Step 6: Final answer
    x = 17,305.35

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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.