Home / 20,843.16-31,264.20-6,612.54

Finding the Fourth Proportional to 20,843.16, 31,264.20 and 6,612.54

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Solution

The fourth proportional to 20,843.16, 31,264.20 and 6,612.54 is: 9,918.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,843.16 : 31,264.20 = 6,612.54 : x
  2. Step 2: Convert to fraction form
    20,843.16/31,264.20 = 6,612.54/x
  3. Step 3: Cross multiply
    20,843.16x = 31,264.20 × 6,612.54
  4. Step 4: Simplify right side
    20,843.16x = 206,735,773.07
  5. Step 5: Solve for x
    x = 206,735,773.07/20,843.16
  6. Step 6: Final answer
    x = 9,918.64

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1.5x scale

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.