Home / 20,721.75-31,082.84-16,588.04

Finding the Fourth Proportional to 20,721.75, 31,082.84 and 16,588.04

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Solution

The fourth proportional to 20,721.75, 31,082.84 and 16,588.04 is: 24,882.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,721.75 : 31,082.84 = 16,588.04 : x
  2. Step 2: Convert to fraction form
    20,721.75/31,082.84 = 16,588.04/x
  3. Step 3: Cross multiply
    20,721.75x = 31,082.84 × 16,588.04
  4. Step 4: Simplify right side
    20,721.75x = 515,603,357.00
  5. Step 5: Solve for x
    x = 515,603,357.00/20,721.75
  6. Step 6: Final answer
    x = 24,882.23

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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.