Home / 42,407.30-63,552.08-18,679.26

Finding the Fourth Proportional to 42,407.30, 63,552.08 and 18,679.26

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Solution

The fourth proportional to 42,407.30, 63,552.08 and 18,679.26 is: 27,992.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,407.30 : 63,552.08 = 18,679.26 : x
  2. Step 2: Convert to fraction form
    42,407.30/63,552.08 = 18,679.26/x
  3. Step 3: Cross multiply
    42,407.30x = 63,552.08 × 18,679.26
  4. Step 4: Simplify right side
    42,407.30x = 1,187,105,825.86
  5. Step 5: Solve for x
    x = 1,187,105,825.86/42,407.30
  6. Step 6: Final answer
    x = 27,992.96

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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.