Home / 26,081.11-39,121.76-18,324.55

Finding the Fourth Proportional to 26,081.11, 39,121.76 and 18,324.55

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Solution

The fourth proportional to 26,081.11, 39,121.76 and 18,324.55 is: 27,486.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,081.11 : 39,121.76 = 18,324.55 : x
  2. Step 2: Convert to fraction form
    26,081.11/39,121.76 = 18,324.55/x
  3. Step 3: Cross multiply
    26,081.11x = 39,121.76 × 18,324.55
  4. Step 4: Simplify right side
    26,081.11x = 716,888,647.21
  5. Step 5: Solve for x
    x = 716,888,647.21/26,081.11
  6. Step 6: Final answer
    x = 27,486.89

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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.