Home / 21,982.95-32,982.09-15,984.63

Finding the Fourth Proportional to 21,982.95, 32,982.09 and 15,984.63

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Solution

The fourth proportional to 21,982.95, 32,982.09 and 15,984.63 is: 23,982.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,982.95 : 32,982.09 = 15,984.63 : x
  2. Step 2: Convert to fraction form
    21,982.95/32,982.09 = 15,984.63/x
  3. Step 3: Cross multiply
    21,982.95x = 32,982.09 × 15,984.63
  4. Step 4: Simplify right side
    21,982.95x = 527,206,505.28
  5. Step 5: Solve for x
    x = 527,206,505.28/21,982.95
  6. Step 6: Final answer
    x = 23,982.52

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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.