Home / 21,982.17-32,982.48-9,495.78

Finding the Fourth Proportional to 21,982.17, 32,982.48 and 9,495.78

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Solution

The fourth proportional to 21,982.17, 32,982.48 and 9,495.78 is: 14,247.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,982.17 : 32,982.48 = 9,495.78 : x
  2. Step 2: Convert to fraction form
    21,982.17/32,982.48 = 9,495.78/x
  3. Step 3: Cross multiply
    21,982.17x = 32,982.48 × 9,495.78
  4. Step 4: Simplify right side
    21,982.17x = 313,194,373.93
  5. Step 5: Solve for x
    x = 313,194,373.93/21,982.17
  6. Step 6: Final answer
    x = 14,247.65

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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.