Home / 28,165.60-42,246.20-7,388.56

Finding the Fourth Proportional to 28,165.60, 42,246.20 and 7,388.56

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Solution

The fourth proportional to 28,165.60, 42,246.20 and 7,388.56 is: 11,082.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,165.60 : 42,246.20 = 7,388.56 : x
  2. Step 2: Convert to fraction form
    28,165.60/42,246.20 = 7,388.56/x
  3. Step 3: Cross multiply
    28,165.60x = 42,246.20 × 7,388.56
  4. Step 4: Simplify right side
    28,165.60x = 312,138,583.47
  5. Step 5: Solve for x
    x = 312,138,583.47/28,165.60
  6. Step 6: Final answer
    x = 11,082.26

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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.