Home / 28,179.28-42,278.52-10,654.16

Finding the Fourth Proportional to 28,179.28, 42,278.52 and 10,654.16

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Solution

The fourth proportional to 28,179.28, 42,278.52 and 10,654.16 is: 15,984.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,179.28 : 42,278.52 = 10,654.16 : x
  2. Step 2: Convert to fraction form
    28,179.28/42,278.52 = 10,654.16/x
  3. Step 3: Cross multiply
    28,179.28x = 42,278.52 × 10,654.16
  4. Step 4: Simplify right side
    28,179.28x = 450,442,116.64
  5. Step 5: Solve for x
    x = 450,442,116.64/28,179.28
  6. Step 6: Final answer
    x = 15,984.87

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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.