Home / 28,479.29-42,717.24-8,757.71

Finding the Fourth Proportional to 28,479.29, 42,717.24 and 8,757.71

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Solution

The fourth proportional to 28,479.29, 42,717.24 and 8,757.71 is: 13,136.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,479.29 : 42,717.24 = 8,757.71 : x
  2. Step 2: Convert to fraction form
    28,479.29/42,717.24 = 8,757.71/x
  3. Step 3: Cross multiply
    28,479.29x = 42,717.24 × 8,757.71
  4. Step 4: Simplify right side
    28,479.29x = 374,104,986.33
  5. Step 5: Solve for x
    x = 374,104,986.33/28,479.29
  6. Step 6: Final answer
    x = 13,136.04

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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.