Home / 21,489.68-32,236.82-9,013.66

Finding the Fourth Proportional to 21,489.68, 32,236.82 and 9,013.66

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Solution

The fourth proportional to 21,489.68, 32,236.82 and 9,013.66 is: 13,521.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,489.68 : 32,236.82 = 9,013.66 : x
  2. Step 2: Convert to fraction form
    21,489.68/32,236.82 = 9,013.66/x
  3. Step 3: Cross multiply
    21,489.68x = 32,236.82 × 9,013.66
  4. Step 4: Simplify right side
    21,489.68x = 290,571,734.96
  5. Step 5: Solve for x
    x = 290,571,734.96/21,489.68
  6. Step 6: Final answer
    x = 13,521.45

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1.5x scale

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.