Home / 27,909.13-38,514.45-15,162.21

Finding the Fourth Proportional to 27,909.13, 38,514.45 and 15,162.21

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Solution

The fourth proportional to 27,909.13, 38,514.45 and 15,162.21 is: 20,923.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,909.13 : 38,514.45 = 15,162.21 : x
  2. Step 2: Convert to fraction form
    27,909.13/38,514.45 = 15,162.21/x
  3. Step 3: Cross multiply
    27,909.13x = 38,514.45 × 15,162.21
  4. Step 4: Simplify right side
    27,909.13x = 583,964,178.93
  5. Step 5: Solve for x
    x = 583,964,178.93/27,909.13
  6. Step 6: Final answer
    x = 20,923.77

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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.