Home / 47,724.20-71,615.55-19,657.70

Finding the Fourth Proportional to 47,724.20, 71,615.55 and 19,657.70

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Solution

The fourth proportional to 47,724.20, 71,615.55 and 19,657.70 is: 29,498.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,724.20 : 71,615.55 = 19,657.70 : x
  2. Step 2: Convert to fraction form
    47,724.20/71,615.55 = 19,657.70/x
  3. Step 3: Cross multiply
    47,724.20x = 71,615.55 × 19,657.70
  4. Step 4: Simplify right side
    47,724.20x = 1,407,796,997.24
  5. Step 5: Solve for x
    x = 1,407,796,997.24/47,724.20
  6. Step 6: Final answer
    x = 29,498.60

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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.