Home / 47,918.60-71,889.90-18,338.76

Finding the Fourth Proportional to 47,918.60, 71,889.90 and 18,338.76

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Solution

The fourth proportional to 47,918.60, 71,889.90 and 18,338.76 is: 27,512.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,918.60 : 71,889.90 = 18,338.76 : x
  2. Step 2: Convert to fraction form
    47,918.60/71,889.90 = 18,338.76/x
  3. Step 3: Cross multiply
    47,918.60x = 71,889.90 × 18,338.76
  4. Step 4: Simplify right side
    47,918.60x = 1,318,371,622.52
  5. Step 5: Solve for x
    x = 1,318,371,622.52/47,918.60
  6. Step 6: Final answer
    x = 27,512.73

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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.