Home / 38,015.12-57,015.96-10,315.28

Finding the Fourth Proportional to 38,015.12, 57,015.96 and 10,315.28

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Solution

The fourth proportional to 38,015.12, 57,015.96 and 10,315.28 is: 15,471.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,015.12 : 57,015.96 = 10,315.28 : x
  2. Step 2: Convert to fraction form
    38,015.12/57,015.96 = 10,315.28/x
  3. Step 3: Cross multiply
    38,015.12x = 57,015.96 × 10,315.28
  4. Step 4: Simplify right side
    38,015.12x = 588,135,591.87
  5. Step 5: Solve for x
    x = 588,135,591.87/38,015.12
  6. Step 6: Final answer
    x = 15,471.10

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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.