Home / 28,722.38-43,083.29-15,657.75

Finding the Fourth Proportional to 28,722.38, 43,083.29 and 15,657.75

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Solution

The fourth proportional to 28,722.38, 43,083.29 and 15,657.75 is: 23,486.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,722.38 : 43,083.29 = 15,657.75 : x
  2. Step 2: Convert to fraction form
    28,722.38/43,083.29 = 15,657.75/x
  3. Step 3: Cross multiply
    28,722.38x = 43,083.29 × 15,657.75
  4. Step 4: Simplify right side
    28,722.38x = 674,587,423.14
  5. Step 5: Solve for x
    x = 674,587,423.14/28,722.38
  6. Step 6: Final answer
    x = 23,486.48

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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.