Home / 31,276.13-43,161.05-20,098.13

Finding the Fourth Proportional to 31,276.13, 43,161.05 and 20,098.13

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Solution

The fourth proportional to 31,276.13, 43,161.05 and 20,098.13 is: 27,735.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,276.13 : 43,161.05 = 20,098.13 : x
  2. Step 2: Convert to fraction form
    31,276.13/43,161.05 = 20,098.13/x
  3. Step 3: Cross multiply
    31,276.13x = 43,161.05 × 20,098.13
  4. Step 4: Simplify right side
    31,276.13x = 867,456,228.28
  5. Step 5: Solve for x
    x = 867,456,228.28/31,276.13
  6. Step 6: Final answer
    x = 27,735.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.