Home / 27,758.39-38,296.68-15,818.59

Finding the Fourth Proportional to 27,758.39, 38,296.68 and 15,818.59

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Solution

The fourth proportional to 27,758.39, 38,296.68 and 15,818.59 is: 21,824.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,758.39 : 38,296.68 = 15,818.59 : x
  2. Step 2: Convert to fraction form
    27,758.39/38,296.68 = 15,818.59/x
  3. Step 3: Cross multiply
    27,758.39x = 38,296.68 × 15,818.59
  4. Step 4: Simplify right side
    27,758.39x = 605,799,287.80
  5. Step 5: Solve for x
    x = 605,799,287.80/27,758.39
  6. Step 6: Final answer
    x = 21,824.01

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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.