Home / 47,427.92-71,142.14-14,147.72

Finding the Fourth Proportional to 47,427.92, 71,142.14 and 14,147.72

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Solution

The fourth proportional to 47,427.92, 71,142.14 and 14,147.72 is: 21,221.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,427.92 : 71,142.14 = 14,147.72 : x
  2. Step 2: Convert to fraction form
    47,427.92/71,142.14 = 14,147.72/x
  3. Step 3: Cross multiply
    47,427.92x = 71,142.14 × 14,147.72
  4. Step 4: Simplify right side
    47,427.92x = 1,006,499,076.92
  5. Step 5: Solve for x
    x = 1,006,499,076.92/47,427.92
  6. Step 6: Final answer
    x = 21,221.66

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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.