Home / 42,408.30-63,612.45-11,243.55

Finding the Fourth Proportional to 42,408.30, 63,612.45 and 11,243.55

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Solution

The fourth proportional to 42,408.30, 63,612.45 and 11,243.55 is: 16,865.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,408.30 : 63,612.45 = 11,243.55 : x
  2. Step 2: Convert to fraction form
    42,408.30/63,612.45 = 11,243.55/x
  3. Step 3: Cross multiply
    42,408.30x = 63,612.45 × 11,243.55
  4. Step 4: Simplify right side
    42,408.30x = 715,229,762.20
  5. Step 5: Solve for x
    x = 715,229,762.20/42,408.30
  6. Step 6: Final answer
    x = 16,865.33

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Similar ratio
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1.5x scale

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.