Home / 28,591.32-39,456.42-15,844.92

Finding the Fourth Proportional to 28,591.32, 39,456.42 and 15,844.92

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Solution

The fourth proportional to 28,591.32, 39,456.42 and 15,844.92 is: 21,866.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,591.32 : 39,456.42 = 15,844.92 : x
  2. Step 2: Convert to fraction form
    28,591.32/39,456.42 = 15,844.92/x
  3. Step 3: Cross multiply
    28,591.32x = 39,456.42 × 15,844.92
  4. Step 4: Simplify right side
    28,591.32x = 625,183,818.39
  5. Step 5: Solve for x
    x = 625,183,818.39/28,591.32
  6. Step 6: Final answer
    x = 21,866.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.