Home / 42,029.62-63,043.65-10,439.75

Finding the Fourth Proportional to 42,029.62, 63,043.65 and 10,439.75

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Solution

The fourth proportional to 42,029.62, 63,043.65 and 10,439.75 is: 15,659.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,029.62 : 63,043.65 = 10,439.75 : x
  2. Step 2: Convert to fraction form
    42,029.62/63,043.65 = 10,439.75/x
  3. Step 3: Cross multiply
    42,029.62x = 63,043.65 × 10,439.75
  4. Step 4: Simplify right side
    42,029.62x = 658,160,102.70
  5. Step 5: Solve for x
    x = 658,160,102.70/42,029.62
  6. Step 6: Final answer
    x = 15,659.44

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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.