Home / 47,816.48-71,711.76-20,108

Finding the Fourth Proportional to 47,816.48, 71,711.76 and 20,108

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Solution

The fourth proportional to 47,816.48, 71,711.76 and 20,108 is: 30,156.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,816.48 : 71,711.76 = 20,108 : x
  2. Step 2: Convert to fraction form
    47,816.48/71,711.76 = 20,108/x
  3. Step 3: Cross multiply
    47,816.48x = 71,711.76 × 20,108
  4. Step 4: Simplify right side
    47,816.48x = 1,441,980,070.08
  5. Step 5: Solve for x
    x = 1,441,980,070.08/47,816.48
  6. Step 6: Final answer
    x = 30,156.55

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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.