Home / 23,279.42-34,919.14-19,158.78

Finding the Fourth Proportional to 23,279.42, 34,919.14 and 19,158.78

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Solution

The fourth proportional to 23,279.42, 34,919.14 and 19,158.78 is: 28,738.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,279.42 : 34,919.14 = 19,158.78 : x
  2. Step 2: Convert to fraction form
    23,279.42/34,919.14 = 19,158.78/x
  3. Step 3: Cross multiply
    23,279.42x = 34,919.14 × 19,158.78
  4. Step 4: Simplify right side
    23,279.42x = 669,008,121.05
  5. Step 5: Solve for x
    x = 669,008,121.05/23,279.42
  6. Step 6: Final answer
    x = 28,738.18

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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.