Home / 22,615.38-31,209.22-12,545.36

Finding the Fourth Proportional to 22,615.38, 31,209.22 and 12,545.36

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Solution

The fourth proportional to 22,615.38, 31,209.22 and 12,545.36 is: 17,312.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,615.38 : 31,209.22 = 12,545.36 : x
  2. Step 2: Convert to fraction form
    22,615.38/31,209.22 = 12,545.36/x
  3. Step 3: Cross multiply
    22,615.38x = 31,209.22 × 12,545.36
  4. Step 4: Simplify right side
    22,615.38x = 391,530,900.22
  5. Step 5: Solve for x
    x = 391,530,900.22/22,615.38
  6. Step 6: Final answer
    x = 17,312.59

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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.