Home / 47,427.52-71,143.92-21,134.08

Finding the Fourth Proportional to 47,427.52, 71,143.92 and 21,134.08

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Solution

The fourth proportional to 47,427.52, 71,143.92 and 21,134.08 is: 31,702.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,427.52 : 71,143.92 = 21,134.08 : x
  2. Step 2: Convert to fraction form
    47,427.52/71,143.92 = 21,134.08/x
  3. Step 3: Cross multiply
    47,427.52x = 71,143.92 × 21,134.08
  4. Step 4: Simplify right side
    47,427.52x = 1,503,561,296.79
  5. Step 5: Solve for x
    x = 1,503,561,296.79/47,427.52
  6. Step 6: Final answer
    x = 31,702.30

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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.