Home / 22,043.42-30,420.97-13,545.89

Finding the Fourth Proportional to 22,043.42, 30,420.97 and 13,545.89

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Solution

The fourth proportional to 22,043.42, 30,420.97 and 13,545.89 is: 18,693.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,043.42 : 30,420.97 = 13,545.89 : x
  2. Step 2: Convert to fraction form
    22,043.42/30,420.97 = 13,545.89/x
  3. Step 3: Cross multiply
    22,043.42x = 30,420.97 × 13,545.89
  4. Step 4: Simplify right side
    22,043.42x = 412,079,126.98
  5. Step 5: Solve for x
    x = 412,079,126.98/22,043.42
  6. Step 6: Final answer
    x = 18,693.98

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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.