Home / 22,685.57-31,306.11-12,613.91

Finding the Fourth Proportional to 22,685.57, 31,306.11 and 12,613.91

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Solution

The fourth proportional to 22,685.57, 31,306.11 and 12,613.91 is: 17,407.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,685.57 : 31,306.11 = 12,613.91 : x
  2. Step 2: Convert to fraction form
    22,685.57/31,306.11 = 12,613.91/x
  3. Step 3: Cross multiply
    22,685.57x = 31,306.11 × 12,613.91
  4. Step 4: Simplify right side
    22,685.57x = 394,892,297.46
  5. Step 5: Solve for x
    x = 394,892,297.46/22,685.57
  6. Step 6: Final answer
    x = 17,407.21

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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.