Home / 21,988.40-32,982.30-5,348.39

Finding the Fourth Proportional to 21,988.40, 32,982.30 and 5,348.39

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Solution

The fourth proportional to 21,988.40, 32,982.30 and 5,348.39 is: 8,022.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,988.40 : 32,982.30 = 5,348.39 : x
  2. Step 2: Convert to fraction form
    21,988.40/32,982.30 = 5,348.39/x
  3. Step 3: Cross multiply
    21,988.40x = 32,982.30 × 5,348.39
  4. Step 4: Simplify right side
    21,988.40x = 176,402,038.59
  5. Step 5: Solve for x
    x = 176,402,038.59/21,988.40
  6. Step 6: Final answer
    x = 8,022.51

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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.