Home / 22,613.56-31,207.98-15,543.16

Finding the Fourth Proportional to 22,613.56, 31,207.98 and 15,543.16

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Solution

The fourth proportional to 22,613.56, 31,207.98 and 15,543.16 is: 21,450.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,613.56 : 31,207.98 = 15,543.16 : x
  2. Step 2: Convert to fraction form
    22,613.56/31,207.98 = 15,543.16/x
  3. Step 3: Cross multiply
    22,613.56x = 31,207.98 × 15,543.16
  4. Step 4: Simplify right side
    22,613.56x = 485,070,626.42
  5. Step 5: Solve for x
    x = 485,070,626.42/22,613.56
  6. Step 6: Final answer
    x = 21,450.43

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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.