Home / 18,021.39-27,034.65-5,542.45

Finding the Fourth Proportional to 18,021.39, 27,034.65 and 5,542.45

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Solution

The fourth proportional to 18,021.39, 27,034.65 and 5,542.45 is: 8,314.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,021.39 : 27,034.65 = 5,542.45 : x
  2. Step 2: Convert to fraction form
    18,021.39/27,034.65 = 5,542.45/x
  3. Step 3: Cross multiply
    18,021.39x = 27,034.65 × 5,542.45
  4. Step 4: Simplify right side
    18,021.39x = 149,838,195.89
  5. Step 5: Solve for x
    x = 149,838,195.89/18,021.39
  6. Step 6: Final answer
    x = 8,314.46

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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.