Home / 21,747.45-32,769.30-17,885.22

Finding the Fourth Proportional to 21,747.45, 32,769.30 and 17,885.22

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Solution

The fourth proportional to 21,747.45, 32,769.30 and 17,885.22 is: 26,949.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,747.45 : 32,769.30 = 17,885.22 : x
  2. Step 2: Convert to fraction form
    21,747.45/32,769.30 = 17,885.22/x
  3. Step 3: Cross multiply
    21,747.45x = 32,769.30 × 17,885.22
  4. Step 4: Simplify right side
    21,747.45x = 586,086,139.75
  5. Step 5: Solve for x
    x = 586,086,139.75/21,747.45
  6. Step 6: Final answer
    x = 26,949.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.