Home / 42,336.87-63,497.20-21,271.08

Finding the Fourth Proportional to 42,336.87, 63,497.20 and 21,271.08

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Solution

The fourth proportional to 42,336.87, 63,497.20 and 21,271.08 is: 31,902.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,336.87 : 63,497.20 = 21,271.08 : x
  2. Step 2: Convert to fraction form
    42,336.87/63,497.20 = 21,271.08/x
  3. Step 3: Cross multiply
    42,336.87x = 63,497.20 × 21,271.08
  4. Step 4: Simplify right side
    42,336.87x = 1,350,654,020.98
  5. Step 5: Solve for x
    x = 1,350,654,020.98/42,336.87
  6. Step 6: Final answer
    x = 31,902.55

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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.