Home / 28,593.65-42,891.85-13,815

Finding the Fourth Proportional to 28,593.65, 42,891.85 and 13,815

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Solution

The fourth proportional to 28,593.65, 42,891.85 and 13,815 is: 20,723.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,593.65 : 42,891.85 = 13,815 : x
  2. Step 2: Convert to fraction form
    28,593.65/42,891.85 = 13,815/x
  3. Step 3: Cross multiply
    28,593.65x = 42,891.85 × 13,815
  4. Step 4: Simplify right side
    28,593.65x = 592,550,873.21
  5. Step 5: Solve for x
    x = 592,550,873.21/28,593.65
  6. Step 6: Final answer
    x = 20,723.16

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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.