Home / 27,279.83-40,854.03-18,488.09

Finding the Fourth Proportional to 27,279.83, 40,854.03 and 18,488.09

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Solution

The fourth proportional to 27,279.83, 40,854.03 and 18,488.09 is: 27,687.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,279.83 : 40,854.03 = 18,488.09 : x
  2. Step 2: Convert to fraction form
    27,279.83/40,854.03 = 18,488.09/x
  3. Step 3: Cross multiply
    27,279.83x = 40,854.03 × 18,488.09
  4. Step 4: Simplify right side
    27,279.83x = 755,312,709.90
  5. Step 5: Solve for x
    x = 755,312,709.90/27,279.83
  6. Step 6: Final answer
    x = 27,687.59

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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.