Home / 42,340.68-63,514.53-21,269.88

Finding the Fourth Proportional to 42,340.68, 63,514.53 and 21,269.88

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Solution

The fourth proportional to 42,340.68, 63,514.53 and 21,269.88 is: 31,906.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,340.68 : 63,514.53 = 21,269.88 : x
  2. Step 2: Convert to fraction form
    42,340.68/63,514.53 = 21,269.88/x
  3. Step 3: Cross multiply
    42,340.68x = 63,514.53 × 21,269.88
  4. Step 4: Simplify right side
    42,340.68x = 1,350,946,431.36
  5. Step 5: Solve for x
    x = 1,350,946,431.36/42,340.68
  6. Step 6: Final answer
    x = 31,906.58

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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.