Home / 22,278.46-30,744.93-12,207.79

Finding the Fourth Proportional to 22,278.46, 30,744.93 and 12,207.79

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Solution

The fourth proportional to 22,278.46, 30,744.93 and 12,207.79 is: 16,847.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,278.46 : 30,744.93 = 12,207.79 : x
  2. Step 2: Convert to fraction form
    22,278.46/30,744.93 = 12,207.79/x
  3. Step 3: Cross multiply
    22,278.46x = 30,744.93 × 12,207.79
  4. Step 4: Simplify right side
    22,278.46x = 375,327,649.00
  5. Step 5: Solve for x
    x = 375,327,649.00/22,278.46
  6. Step 6: Final answer
    x = 16,847.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.