Home / 42,331.44-63,503.64-11,169.12

Finding the Fourth Proportional to 42,331.44, 63,503.64 and 11,169.12

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Solution

The fourth proportional to 42,331.44, 63,503.64 and 11,169.12 is: 16,755.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,331.44 : 63,503.64 = 11,169.12 : x
  2. Step 2: Convert to fraction form
    42,331.44/63,503.64 = 11,169.12/x
  3. Step 3: Cross multiply
    42,331.44x = 63,503.64 × 11,169.12
  4. Step 4: Simplify right side
    42,331.44x = 709,279,775.60
  5. Step 5: Solve for x
    x = 709,279,775.60/42,331.44
  6. Step 6: Final answer
    x = 16,755.39

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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.