Home / 28,387.13-42,598.92-19,037.71

Finding the Fourth Proportional to 28,387.13, 42,598.92 and 19,037.71

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Solution

The fourth proportional to 28,387.13, 42,598.92 and 19,037.71 is: 28,568.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,387.13 : 42,598.92 = 19,037.71 : x
  2. Step 2: Convert to fraction form
    28,387.13/42,598.92 = 19,037.71/x
  3. Step 3: Cross multiply
    28,387.13x = 42,598.92 × 19,037.71
  4. Step 4: Simplify right side
    28,387.13x = 810,985,672.28
  5. Step 5: Solve for x
    x = 810,985,672.28/28,387.13
  6. Step 6: Final answer
    x = 28,568.78

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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.