Home / 42,147.88-63,215.44-15,846.47

Finding the Fourth Proportional to 42,147.88, 63,215.44 and 15,846.47

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Solution

The fourth proportional to 42,147.88, 63,215.44 and 15,846.47 is: 23,767.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,147.88 : 63,215.44 = 15,846.47 : x
  2. Step 2: Convert to fraction form
    42,147.88/63,215.44 = 15,846.47/x
  3. Step 3: Cross multiply
    42,147.88x = 63,215.44 × 15,846.47
  4. Step 4: Simplify right side
    42,147.88x = 1,001,741,454.86
  5. Step 5: Solve for x
    x = 1,001,741,454.86/42,147.88
  6. Step 6: Final answer
    x = 23,767.30

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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.