Home / 28,245.12-42,372.60-11,614.20

Finding the Fourth Proportional to 28,245.12, 42,372.60 and 11,614.20

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Solution

The fourth proportional to 28,245.12, 42,372.60 and 11,614.20 is: 17,423.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,245.12 : 42,372.60 = 11,614.20 : x
  2. Step 2: Convert to fraction form
    28,245.12/42,372.60 = 11,614.20/x
  3. Step 3: Cross multiply
    28,245.12x = 42,372.60 × 11,614.20
  4. Step 4: Simplify right side
    28,245.12x = 492,123,850.92
  5. Step 5: Solve for x
    x = 492,123,850.92/28,245.12
  6. Step 6: Final answer
    x = 17,423.32

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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.