Home / 21,480.20-32,306.70-19,233.80

Finding the Fourth Proportional to 21,480.20, 32,306.70 and 19,233.80

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Solution

The fourth proportional to 21,480.20, 32,306.70 and 19,233.80 is: 28,928.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,480.20 : 32,306.70 = 19,233.80 : x
  2. Step 2: Convert to fraction form
    21,480.20/32,306.70 = 19,233.80/x
  3. Step 3: Cross multiply
    21,480.20x = 32,306.70 × 19,233.80
  4. Step 4: Simplify right side
    21,480.20x = 621,380,606.46
  5. Step 5: Solve for x
    x = 621,380,606.46/21,480.20
  6. Step 6: Final answer
    x = 28,928.06

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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.