Home / 28,575.65-42,891.11-13,794.95

Finding the Fourth Proportional to 28,575.65, 42,891.11 and 13,794.95

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Solution

The fourth proportional to 28,575.65, 42,891.11 and 13,794.95 is: 20,705.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,575.65 : 42,891.11 = 13,794.95 : x
  2. Step 2: Convert to fraction form
    28,575.65/42,891.11 = 13,794.95/x
  3. Step 3: Cross multiply
    28,575.65x = 42,891.11 × 13,794.95
  4. Step 4: Simplify right side
    28,575.65x = 591,680,717.89
  5. Step 5: Solve for x
    x = 591,680,717.89/28,575.65
  6. Step 6: Final answer
    x = 20,705.77

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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.