Home / 42,456.35-63,684.45-11,291.60

Finding the Fourth Proportional to 42,456.35, 63,684.45 and 11,291.60

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Solution

The fourth proportional to 42,456.35, 63,684.45 and 11,291.60 is: 16,937.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,456.35 : 63,684.45 = 11,291.60 : x
  2. Step 2: Convert to fraction form
    42,456.35/63,684.45 = 11,291.60/x
  3. Step 3: Cross multiply
    42,456.35x = 63,684.45 × 11,291.60
  4. Step 4: Simplify right side
    42,456.35x = 719,099,017.20
  5. Step 5: Solve for x
    x = 719,099,017.20/42,456.35
  6. Step 6: Final answer
    x = 16,937.37

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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.