Home / 22,685.09-31,305.96-12,613.95

Finding the Fourth Proportional to 22,685.09, 31,305.96 and 12,613.95

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Solution

The fourth proportional to 22,685.09, 31,305.96 and 12,613.95 is: 17,407.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,685.09 : 31,305.96 = 12,613.95 : x
  2. Step 2: Convert to fraction form
    22,685.09/31,305.96 = 12,613.95/x
  3. Step 3: Cross multiply
    22,685.09x = 31,305.96 × 12,613.95
  4. Step 4: Simplify right side
    22,685.09x = 394,891,814.14
  5. Step 5: Solve for x
    x = 394,891,814.14/22,685.09
  6. Step 6: Final answer
    x = 17,407.55

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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.