Home / 31,591.08-47,287.26-21,672.36

Finding the Fourth Proportional to 31,591.08, 47,287.26 and 21,672.36

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Solution

The fourth proportional to 31,591.08, 47,287.26 and 21,672.36 is: 32,440.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,591.08 : 47,287.26 = 21,672.36 : x
  2. Step 2: Convert to fraction form
    31,591.08/47,287.26 = 21,672.36/x
  3. Step 3: Cross multiply
    31,591.08x = 47,287.26 × 21,672.36
  4. Step 4: Simplify right side
    31,591.08x = 1,024,826,522.13
  5. Step 5: Solve for x
    x = 1,024,826,522.13/31,591.08
  6. Step 6: Final answer
    x = 32,440.38

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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.