Home / 21,988.28-32,982.48-5,348.31

Finding the Fourth Proportional to 21,988.28, 32,982.48 and 5,348.31

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Solution

The fourth proportional to 21,988.28, 32,982.48 and 5,348.31 is: 8,022.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,988.28 : 32,982.48 = 5,348.31 : x
  2. Step 2: Convert to fraction form
    21,988.28/32,982.48 = 5,348.31/x
  3. Step 3: Cross multiply
    21,988.28x = 32,982.48 × 5,348.31
  4. Step 4: Simplify right side
    21,988.28x = 176,400,527.61
  5. Step 5: Solve for x
    x = 176,400,527.61/21,988.28
  6. Step 6: Final answer
    x = 8,022.48

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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.