Home / 47,617.48-71,420.46-12,559.78

Finding the Fourth Proportional to 47,617.48, 71,420.46 and 12,559.78

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Solution

The fourth proportional to 47,617.48, 71,420.46 and 12,559.78 is: 18,838.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,617.48 : 71,420.46 = 12,559.78 : x
  2. Step 2: Convert to fraction form
    47,617.48/71,420.46 = 12,559.78/x
  3. Step 3: Cross multiply
    47,617.48x = 71,420.46 × 12,559.78
  4. Step 4: Simplify right side
    47,617.48x = 897,025,265.10
  5. Step 5: Solve for x
    x = 897,025,265.10/47,617.48
  6. Step 6: Final answer
    x = 18,838.15

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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.