Home / 31,881.28-43,991.20-17,734.08

Finding the Fourth Proportional to 31,881.28, 43,991.20 and 17,734.08

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Solution

The fourth proportional to 31,881.28, 43,991.20 and 17,734.08 is: 24,470.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,881.28 : 43,991.20 = 17,734.08 : x
  2. Step 2: Convert to fraction form
    31,881.28/43,991.20 = 17,734.08/x
  3. Step 3: Cross multiply
    31,881.28x = 43,991.20 × 17,734.08
  4. Step 4: Simplify right side
    31,881.28x = 780,143,460.10
  5. Step 5: Solve for x
    x = 780,143,460.10/31,881.28
  6. Step 6: Final answer
    x = 24,470.27

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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.