Home / 28,815.18-39,761.72-17,487.43

Finding the Fourth Proportional to 28,815.18, 39,761.72 and 17,487.43

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Solution

The fourth proportional to 28,815.18, 39,761.72 and 17,487.43 is: 24,130.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,815.18 : 39,761.72 = 17,487.43 : x
  2. Step 2: Convert to fraction form
    28,815.18/39,761.72 = 17,487.43/x
  3. Step 3: Cross multiply
    28,815.18x = 39,761.72 × 17,487.43
  4. Step 4: Simplify right side
    28,815.18x = 695,330,173.92
  5. Step 5: Solve for x
    x = 695,330,173.92/28,815.18
  6. Step 6: Final answer
    x = 24,130.69

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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.