Home / 38,019.20-57,028.80-10,317.20

Finding the Fourth Proportional to 38,019.20, 57,028.80 and 10,317.20

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Solution

The fourth proportional to 38,019.20, 57,028.80 and 10,317.20 is: 15,475.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,019.20 : 57,028.80 = 10,317.20 : x
  2. Step 2: Convert to fraction form
    38,019.20/57,028.80 = 10,317.20/x
  3. Step 3: Cross multiply
    38,019.20x = 57,028.80 × 10,317.20
  4. Step 4: Simplify right side
    38,019.20x = 588,377,535.36
  5. Step 5: Solve for x
    x = 588,377,535.36/38,019.20
  6. Step 6: Final answer
    x = 15,475.80

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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.