Home / 27,921.61-38,530.84-15,976.49

Finding the Fourth Proportional to 27,921.61, 38,530.84 and 15,976.49

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Solution

The fourth proportional to 27,921.61, 38,530.84 and 15,976.49 is: 22,046.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,921.61 : 38,530.84 = 15,976.49 : x
  2. Step 2: Convert to fraction form
    27,921.61/38,530.84 = 15,976.49/x
  3. Step 3: Cross multiply
    27,921.61x = 38,530.84 × 15,976.49
  4. Step 4: Simplify right side
    27,921.61x = 615,587,594.05
  5. Step 5: Solve for x
    x = 615,587,594.05/27,921.61
  6. Step 6: Final answer
    x = 22,046.99

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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.