Home / 42,273.12-63,431.28-21,496.56

Finding the Fourth Proportional to 42,273.12, 63,431.28 and 21,496.56

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Solution

The fourth proportional to 42,273.12, 63,431.28 and 21,496.56 is: 32,255.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,273.12 : 63,431.28 = 21,496.56 : x
  2. Step 2: Convert to fraction form
    42,273.12/63,431.28 = 21,496.56/x
  3. Step 3: Cross multiply
    42,273.12x = 63,431.28 × 21,496.56
  4. Step 4: Simplify right side
    42,273.12x = 1,363,554,316.40
  5. Step 5: Solve for x
    x = 1,363,554,316.40/42,273.12
  6. Step 6: Final answer
    x = 32,255.82

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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.