Home / 27,909.04-38,514.32-15,162.12

Finding the Fourth Proportional to 27,909.04, 38,514.32 and 15,162.12

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Solution

The fourth proportional to 27,909.04, 38,514.32 and 15,162.12 is: 20,923.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,909.04 : 38,514.32 = 15,162.12 : x
  2. Step 2: Convert to fraction form
    27,909.04/38,514.32 = 15,162.12/x
  3. Step 3: Cross multiply
    27,909.04x = 38,514.32 × 15,162.12
  4. Step 4: Simplify right side
    27,909.04x = 583,958,665.75
  5. Step 5: Solve for x
    x = 583,958,665.75/27,909.04
  6. Step 6: Final answer
    x = 20,923.64

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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.