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Finding the Fourth Proportional to 27,695.52, 38,218.74 and 15,595.74

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Solution

The fourth proportional to 27,695.52, 38,218.74 and 15,595.74 is: 21,521.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,695.52 : 38,218.74 = 15,595.74 : x
  2. Step 2: Convert to fraction form
    27,695.52/38,218.74 = 15,595.74/x
  3. Step 3: Cross multiply
    27,695.52x = 38,218.74 × 15,595.74
  4. Step 4: Simplify right side
    27,695.52x = 596,049,473.68
  5. Step 5: Solve for x
    x = 596,049,473.68/27,695.52
  6. Step 6: Final answer
    x = 21,521.51

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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.