Home / 27,920.58-38,519.42-15,977.52

Finding the Fourth Proportional to 27,920.58, 38,519.42 and 15,977.52

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Solution

The fourth proportional to 27,920.58, 38,519.42 and 15,977.52 is: 22,042.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,920.58 : 38,519.42 = 15,977.52 : x
  2. Step 2: Convert to fraction form
    27,920.58/38,519.42 = 15,977.52/x
  3. Step 3: Cross multiply
    27,920.58x = 38,519.42 × 15,977.52
  4. Step 4: Simplify right side
    27,920.58x = 615,444,723.55
  5. Step 5: Solve for x
    x = 615,444,723.55/27,920.58
  6. Step 6: Final answer
    x = 22,042.69

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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.