Home / 18,442.28-25,455.78-15,951.16

Finding the Fourth Proportional to 18,442.28, 25,455.78 and 15,951.16

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Solution

The fourth proportional to 18,442.28, 25,455.78 and 15,951.16 is: 22,017.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,442.28 : 25,455.78 = 15,951.16 : x
  2. Step 2: Convert to fraction form
    18,442.28/25,455.78 = 15,951.16/x
  3. Step 3: Cross multiply
    18,442.28x = 25,455.78 × 15,951.16
  4. Step 4: Simplify right side
    18,442.28x = 406,049,219.70
  5. Step 5: Solve for x
    x = 406,049,219.70/18,442.28
  6. Step 6: Final answer
    x = 22,017.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.