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Finding the Fourth Proportional to 16,342.71, 22,514.07 and 15,361.65

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Solution

The fourth proportional to 16,342.71, 22,514.07 and 15,361.65 is: 21,162.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,342.71 : 22,514.07 = 15,361.65 : x
  2. Step 2: Convert to fraction form
    16,342.71/22,514.07 = 15,361.65/x
  3. Step 3: Cross multiply
    16,342.71x = 22,514.07 × 15,361.65
  4. Step 4: Simplify right side
    16,342.71x = 345,853,234.61
  5. Step 5: Solve for x
    x = 345,853,234.61/16,342.71
  6. Step 6: Final answer
    x = 21,162.54

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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.