Home / 28,160.25-42,281.91-15,704.61

Finding the Fourth Proportional to 28,160.25, 42,281.91 and 15,704.61

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Solution

The fourth proportional to 28,160.25, 42,281.91 and 15,704.61 is: 23,580.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,160.25 : 42,281.91 = 15,704.61 : x
  2. Step 2: Convert to fraction form
    28,160.25/42,281.91 = 15,704.61/x
  3. Step 3: Cross multiply
    28,160.25x = 42,281.91 × 15,704.61
  4. Step 4: Simplify right side
    28,160.25x = 664,020,906.61
  5. Step 5: Solve for x
    x = 664,020,906.61/28,160.25
  6. Step 6: Final answer
    x = 23,580.08

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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.