Home / 47,690.52-71,561.70-20,007.96

Finding the Fourth Proportional to 47,690.52, 71,561.70 and 20,007.96

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Solution

The fourth proportional to 47,690.52, 71,561.70 and 20,007.96 is: 30,022.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,690.52 : 71,561.70 = 20,007.96 : x
  2. Step 2: Convert to fraction form
    47,690.52/71,561.70 = 20,007.96/x
  3. Step 3: Cross multiply
    47,690.52x = 71,561.70 × 20,007.96
  4. Step 4: Simplify right side
    47,690.52x = 1,431,803,631.13
  5. Step 5: Solve for x
    x = 1,431,803,631.13/47,690.52
  6. Step 6: Final answer
    x = 30,022.81

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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.