Home / 20,515.24-30,758.28-10,523

Finding the Fourth Proportional to 20,515.24, 30,758.28 and 10,523

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Solution

The fourth proportional to 20,515.24, 30,758.28 and 10,523 is: 15,777.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,515.24 : 30,758.28 = 10,523 : x
  2. Step 2: Convert to fraction form
    20,515.24/30,758.28 = 10,523/x
  3. Step 3: Cross multiply
    20,515.24x = 30,758.28 × 10,523
  4. Step 4: Simplify right side
    20,515.24x = 323,669,380.44
  5. Step 5: Solve for x
    x = 323,669,380.44/20,515.24
  6. Step 6: Final answer
    x = 15,777.02

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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.