Home / 28,034.32-38,687.20-15,459.08

Finding the Fourth Proportional to 28,034.32, 38,687.20 and 15,459.08

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Solution

The fourth proportional to 28,034.32, 38,687.20 and 15,459.08 is: 21,333.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,034.32 : 38,687.20 = 15,459.08 : x
  2. Step 2: Convert to fraction form
    28,034.32/38,687.20 = 15,459.08/x
  3. Step 3: Cross multiply
    28,034.32x = 38,687.20 × 15,459.08
  4. Step 4: Simplify right side
    28,034.32x = 598,068,519.78
  5. Step 5: Solve for x
    x = 598,068,519.78/28,034.32
  6. Step 6: Final answer
    x = 21,333.44

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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.