Home / 38,459.11-57,685.92-10,380.76

Finding the Fourth Proportional to 38,459.11, 57,685.92 and 10,380.76

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Solution

The fourth proportional to 38,459.11, 57,685.92 and 10,380.76 is: 15,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,459.11 : 57,685.92 = 10,380.76 : x
  2. Step 2: Convert to fraction form
    38,459.11/57,685.92 = 10,380.76/x
  3. Step 3: Cross multiply
    38,459.11x = 57,685.92 × 10,380.76
  4. Step 4: Simplify right side
    38,459.11x = 598,823,690.90
  5. Step 5: Solve for x
    x = 598,823,690.90/38,459.11
  6. Step 6: Final answer
    x = 15,570.40

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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.