Home / 27,781.09-38,337.61-15,033.99

Finding the Fourth Proportional to 27,781.09, 38,337.61 and 15,033.99

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Solution

The fourth proportional to 27,781.09, 38,337.61 and 15,033.99 is: 20,746.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,781.09 : 38,337.61 = 15,033.99 : x
  2. Step 2: Convert to fraction form
    27,781.09/38,337.61 = 15,033.99/x
  3. Step 3: Cross multiply
    27,781.09x = 38,337.61 × 15,033.99
  4. Step 4: Simplify right side
    27,781.09x = 576,367,245.36
  5. Step 5: Solve for x
    x = 576,367,245.36/27,781.09
  6. Step 6: Final answer
    x = 20,746.75

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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.