Home / 22,613.69-31,207.12-12,543.13

Finding the Fourth Proportional to 22,613.69, 31,207.12 and 12,543.13

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Solution

The fourth proportional to 22,613.69, 31,207.12 and 12,543.13 is: 17,309.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,613.69 : 31,207.12 = 12,543.13 : x
  2. Step 2: Convert to fraction form
    22,613.69/31,207.12 = 12,543.13/x
  3. Step 3: Cross multiply
    22,613.69x = 31,207.12 × 12,543.13
  4. Step 4: Simplify right side
    22,613.69x = 391,434,953.52
  5. Step 5: Solve for x
    x = 391,434,953.52/22,613.69
  6. Step 6: Final answer
    x = 17,309.64

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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.