Home / 27,790.12-38,348.88-15,212.44

Finding the Fourth Proportional to 27,790.12, 38,348.88 and 15,212.44

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Solution

The fourth proportional to 27,790.12, 38,348.88 and 15,212.44 is: 20,992.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,790.12 : 38,348.88 = 15,212.44 : x
  2. Step 2: Convert to fraction form
    27,790.12/38,348.88 = 15,212.44/x
  3. Step 3: Cross multiply
    27,790.12x = 38,348.88 × 15,212.44
  4. Step 4: Simplify right side
    27,790.12x = 583,380,036.07
  5. Step 5: Solve for x
    x = 583,380,036.07/27,790.12
  6. Step 6: Final answer
    x = 20,992.35

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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.