Home / 47,929.20-71,891.28-18,344.80

Finding the Fourth Proportional to 47,929.20, 71,891.28 and 18,344.80

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Solution

The fourth proportional to 47,929.20, 71,891.28 and 18,344.80 is: 27,516.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,929.20 : 71,891.28 = 18,344.80 : x
  2. Step 2: Convert to fraction form
    47,929.20/71,891.28 = 18,344.80/x
  3. Step 3: Cross multiply
    47,929.20x = 71,891.28 × 18,344.80
  4. Step 4: Simplify right side
    47,929.20x = 1,318,831,153.34
  5. Step 5: Solve for x
    x = 1,318,831,153.34/47,929.20
  6. Step 6: Final answer
    x = 27,516.24

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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.