Home / 47,912.88-71,874.24-18,355.68

Finding the Fourth Proportional to 47,912.88, 71,874.24 and 18,355.68

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Solution

The fourth proportional to 47,912.88, 71,874.24 and 18,355.68 is: 27,535.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,912.88 : 71,874.24 = 18,355.68 : x
  2. Step 2: Convert to fraction form
    47,912.88/71,874.24 = 18,355.68/x
  3. Step 3: Cross multiply
    47,912.88x = 71,874.24 × 18,355.68
  4. Step 4: Simplify right side
    47,912.88x = 1,319,300,549.68
  5. Step 5: Solve for x
    x = 1,319,300,549.68/47,912.88
  6. Step 6: Final answer
    x = 27,535.40

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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.