Home / 20,508.29-30,769.57-6,470.48

Finding the Fourth Proportional to 20,508.29, 30,769.57 and 6,470.48

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Solution

The fourth proportional to 20,508.29, 30,769.57 and 6,470.48 is: 9,707.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,508.29 : 30,769.57 = 6,470.48 : x
  2. Step 2: Convert to fraction form
    20,508.29/30,769.57 = 6,470.48/x
  3. Step 3: Cross multiply
    20,508.29x = 30,769.57 × 6,470.48
  4. Step 4: Simplify right side
    20,508.29x = 199,093,972.31
  5. Step 5: Solve for x
    x = 199,093,972.31/20,508.29
  6. Step 6: Final answer
    x = 9,707.98

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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.