Home / 38,687.22-58,008.15-12,378.42

Finding the Fourth Proportional to 38,687.22, 58,008.15 and 12,378.42

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Solution

The fourth proportional to 38,687.22, 58,008.15 and 12,378.42 is: 18,560.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,687.22 : 58,008.15 = 12,378.42 : x
  2. Step 2: Convert to fraction form
    38,687.22/58,008.15 = 12,378.42/x
  3. Step 3: Cross multiply
    38,687.22x = 58,008.15 × 12,378.42
  4. Step 4: Simplify right side
    38,687.22x = 718,049,244.12
  5. Step 5: Solve for x
    x = 718,049,244.12/38,687.22
  6. Step 6: Final answer
    x = 18,560.37

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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.