Home / 38,129.43-57,173.19-30,282.20

Finding the Fourth Proportional to 38,129.43, 57,173.19 and 30,282.20

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Solution

The fourth proportional to 38,129.43, 57,173.19 and 30,282.20 is: 45,406.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,129.43 : 57,173.19 = 30,282.20 : x
  2. Step 2: Convert to fraction form
    38,129.43/57,173.19 = 30,282.20/x
  3. Step 3: Cross multiply
    38,129.43x = 57,173.19 × 30,282.20
  4. Step 4: Simplify right side
    38,129.43x = 1,731,330,281.13
  5. Step 5: Solve for x
    x = 1,731,330,281.13/38,129.43
  6. Step 6: Final answer
    x = 45,406.66

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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.