Home / 28,338.38-42,507.62-10,568.78

Finding the Fourth Proportional to 28,338.38, 42,507.62 and 10,568.78

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Solution

The fourth proportional to 28,338.38, 42,507.62 and 10,568.78 is: 15,853.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,338.38 : 42,507.62 = 10,568.78 : x
  2. Step 2: Convert to fraction form
    28,338.38/42,507.62 = 10,568.78/x
  3. Step 3: Cross multiply
    28,338.38x = 42,507.62 × 10,568.78
  4. Step 4: Simplify right side
    28,338.38x = 449,253,684.10
  5. Step 5: Solve for x
    x = 449,253,684.10/28,338.38
  6. Step 6: Final answer
    x = 15,853.19

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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.