Home / 27,927.22-38,538.50-15,991.68

Finding the Fourth Proportional to 27,927.22, 38,538.50 and 15,991.68

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Solution

The fourth proportional to 27,927.22, 38,538.50 and 15,991.68 is: 22,067.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,927.22 : 38,538.50 = 15,991.68 : x
  2. Step 2: Convert to fraction form
    27,927.22/38,538.50 = 15,991.68/x
  3. Step 3: Cross multiply
    27,927.22x = 38,538.50 × 15,991.68
  4. Step 4: Simplify right side
    27,927.22x = 616,295,359.68
  5. Step 5: Solve for x
    x = 616,295,359.68/27,927.22
  6. Step 6: Final answer
    x = 22,067.91

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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.