Home / 20,751.68-31,110.06-9,652.70

Finding the Fourth Proportional to 20,751.68, 31,110.06 and 9,652.70

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Solution

The fourth proportional to 20,751.68, 31,110.06 and 9,652.70 is: 14,470.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,751.68 : 31,110.06 = 9,652.70 : x
  2. Step 2: Convert to fraction form
    20,751.68/31,110.06 = 9,652.70/x
  3. Step 3: Cross multiply
    20,751.68x = 31,110.06 × 9,652.70
  4. Step 4: Simplify right side
    20,751.68x = 300,296,076.16
  5. Step 5: Solve for x
    x = 300,296,076.16/20,751.68
  6. Step 6: Final answer
    x = 14,470.93

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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.