Home / 42,543.33-63,717.80-20,372.28

Finding the Fourth Proportional to 42,543.33, 63,717.80 and 20,372.28

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Solution

The fourth proportional to 42,543.33, 63,717.80 and 20,372.28 is: 30,511.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,543.33 : 63,717.80 = 20,372.28 : x
  2. Step 2: Convert to fraction form
    42,543.33/63,717.80 = 20,372.28/x
  3. Step 3: Cross multiply
    42,543.33x = 63,717.80 × 20,372.28
  4. Step 4: Simplify right side
    42,543.33x = 1,298,076,760.72
  5. Step 5: Solve for x
    x = 1,298,076,760.72/42,543.33
  6. Step 6: Final answer
    x = 30,511.87

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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.