Home / 27,913.80-38,520.24-15,976.74

Finding the Fourth Proportional to 27,913.80, 38,520.24 and 15,976.74

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Solution

The fourth proportional to 27,913.80, 38,520.24 and 15,976.74 is: 22,047.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,913.80 : 38,520.24 = 15,976.74 : x
  2. Step 2: Convert to fraction form
    27,913.80/38,520.24 = 15,976.74/x
  3. Step 3: Cross multiply
    27,913.80x = 38,520.24 × 15,976.74
  4. Step 4: Simplify right side
    27,913.80x = 615,427,859.22
  5. Step 5: Solve for x
    x = 615,427,859.22/27,913.80
  6. Step 6: Final answer
    x = 22,047.44

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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.