Home / 22,278.18-30,743.87-13,327.79

Finding the Fourth Proportional to 22,278.18, 30,743.87 and 13,327.79

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Solution

The fourth proportional to 22,278.18, 30,743.87 and 13,327.79 is: 18,392.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,278.18 : 30,743.87 = 13,327.79 : x
  2. Step 2: Convert to fraction form
    22,278.18/30,743.87 = 13,327.79/x
  3. Step 3: Cross multiply
    22,278.18x = 30,743.87 × 13,327.79
  4. Step 4: Simplify right side
    22,278.18x = 409,747,722.75
  5. Step 5: Solve for x
    x = 409,747,722.75/22,278.18
  6. Step 6: Final answer
    x = 18,392.33

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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.