Home / 22,434.45-30,945.85-13,353.71

Finding the Fourth Proportional to 22,434.45, 30,945.85 and 13,353.71

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Solution

The fourth proportional to 22,434.45, 30,945.85 and 13,353.71 is: 18,419.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,434.45 : 30,945.85 = 13,353.71 : x
  2. Step 2: Convert to fraction form
    22,434.45/30,945.85 = 13,353.71/x
  3. Step 3: Cross multiply
    22,434.45x = 30,945.85 × 13,353.71
  4. Step 4: Simplify right side
    22,434.45x = 413,241,839.83
  5. Step 5: Solve for x
    x = 413,241,839.83/22,434.45
  6. Step 6: Final answer
    x = 18,419.97

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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.