Home / 20,450.56-30,616.32-15,278.08

Finding the Fourth Proportional to 20,450.56, 30,616.32 and 15,278.08

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Solution

The fourth proportional to 20,450.56, 30,616.32 and 15,278.08 is: 22,872.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,450.56 : 30,616.32 = 15,278.08 : x
  2. Step 2: Convert to fraction form
    20,450.56/30,616.32 = 15,278.08/x
  3. Step 3: Cross multiply
    20,450.56x = 30,616.32 × 15,278.08
  4. Step 4: Simplify right side
    20,450.56x = 467,758,586.27
  5. Step 5: Solve for x
    x = 467,758,586.27/20,450.56
  6. Step 6: Final answer
    x = 22,872.65

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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.