Home / 20,502.42-28,292.22-11,549.70

Finding the Fourth Proportional to 20,502.42, 28,292.22 and 11,549.70

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Solution

The fourth proportional to 20,502.42, 28,292.22 and 11,549.70 is: 15,937.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,502.42 : 28,292.22 = 11,549.70 : x
  2. Step 2: Convert to fraction form
    20,502.42/28,292.22 = 11,549.70/x
  3. Step 3: Cross multiply
    20,502.42x = 28,292.22 × 11,549.70
  4. Step 4: Simplify right side
    20,502.42x = 326,766,653.33
  5. Step 5: Solve for x
    x = 326,766,653.33/20,502.42
  6. Step 6: Final answer
    x = 15,937.96

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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.