Home / 18,229.28-27,341.20-5,080.32

Finding the Fourth Proportional to 18,229.28, 27,341.20 and 5,080.32

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Solution

The fourth proportional to 18,229.28, 27,341.20 and 5,080.32 is: 7,619.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,229.28 : 27,341.20 = 5,080.32 : x
  2. Step 2: Convert to fraction form
    18,229.28/27,341.20 = 5,080.32/x
  3. Step 3: Cross multiply
    18,229.28x = 27,341.20 × 5,080.32
  4. Step 4: Simplify right side
    18,229.28x = 138,902,045.18
  5. Step 5: Solve for x
    x = 138,902,045.18/18,229.28
  6. Step 6: Final answer
    x = 7,619.72

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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.