Home / 28,254.32-42,387.24-8,531

Finding the Fourth Proportional to 28,254.32, 42,387.24 and 8,531

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Solution

The fourth proportional to 28,254.32, 42,387.24 and 8,531 is: 12,798.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,254.32 : 42,387.24 = 8,531 : x
  2. Step 2: Convert to fraction form
    28,254.32/42,387.24 = 8,531/x
  3. Step 3: Cross multiply
    28,254.32x = 42,387.24 × 8,531
  4. Step 4: Simplify right side
    28,254.32x = 361,605,544.44
  5. Step 5: Solve for x
    x = 361,605,544.44/28,254.32
  6. Step 6: Final answer
    x = 12,798.24

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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.