Home / 28,331.10-42,496.65-23,319.90

Finding the Fourth Proportional to 28,331.10, 42,496.65 and 23,319.90

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Solution

The fourth proportional to 28,331.10, 42,496.65 and 23,319.90 is: 34,979.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,331.10 : 42,496.65 = 23,319.90 : x
  2. Step 2: Convert to fraction form
    28,331.10/42,496.65 = 23,319.90/x
  3. Step 3: Cross multiply
    28,331.10x = 42,496.65 × 23,319.90
  4. Step 4: Simplify right side
    28,331.10x = 991,017,628.34
  5. Step 5: Solve for x
    x = 991,017,628.34/28,331.10
  6. Step 6: Final answer
    x = 34,979.85

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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.