Home / 31,645.68-47,468.56-21,755.04

Finding the Fourth Proportional to 31,645.68, 47,468.56 and 21,755.04

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Solution

The fourth proportional to 31,645.68, 47,468.56 and 21,755.04 is: 32,632.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,645.68 : 47,468.56 = 21,755.04 : x
  2. Step 2: Convert to fraction form
    31,645.68/47,468.56 = 21,755.04/x
  3. Step 3: Cross multiply
    31,645.68x = 47,468.56 × 21,755.04
  4. Step 4: Simplify right side
    31,645.68x = 1,032,680,421.54
  5. Step 5: Solve for x
    x = 1,032,680,421.54/31,645.68
  6. Step 6: Final answer
    x = 32,632.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.