Home / 38,046.24-57,019.68-20,478.24

Finding the Fourth Proportional to 38,046.24, 57,019.68 and 20,478.24

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Solution

The fourth proportional to 38,046.24, 57,019.68 and 20,478.24 is: 30,690.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,046.24 : 57,019.68 = 20,478.24 : x
  2. Step 2: Convert to fraction form
    38,046.24/57,019.68 = 20,478.24/x
  3. Step 3: Cross multiply
    38,046.24x = 57,019.68 × 20,478.24
  4. Step 4: Simplify right side
    38,046.24x = 1,167,662,691.76
  5. Step 5: Solve for x
    x = 1,167,662,691.76/38,046.24
  6. Step 6: Final answer
    x = 30,690.62

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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.