Home / 27,279.38-37,642.61-15,340.18

Finding the Fourth Proportional to 27,279.38, 37,642.61 and 15,340.18

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Solution

The fourth proportional to 27,279.38, 37,642.61 and 15,340.18 is: 21,167.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,279.38 : 37,642.61 = 15,340.18 : x
  2. Step 2: Convert to fraction form
    27,279.38/37,642.61 = 15,340.18/x
  3. Step 3: Cross multiply
    27,279.38x = 37,642.61 × 15,340.18
  4. Step 4: Simplify right side
    27,279.38x = 577,444,336.37
  5. Step 5: Solve for x
    x = 577,444,336.37/27,279.38
  6. Step 6: Final answer
    x = 21,167.80

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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.