Home / 27,672.12-38,187.72-15,734.75

Finding the Fourth Proportional to 27,672.12, 38,187.72 and 15,734.75

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Solution

The fourth proportional to 27,672.12, 38,187.72 and 15,734.75 is: 21,714.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,672.12 : 38,187.72 = 15,734.75 : x
  2. Step 2: Convert to fraction form
    27,672.12/38,187.72 = 15,734.75/x
  3. Step 3: Cross multiply
    27,672.12x = 38,187.72 × 15,734.75
  4. Step 4: Simplify right side
    27,672.12x = 600,874,036.33
  5. Step 5: Solve for x
    x = 600,874,036.33/27,672.12
  6. Step 6: Final answer
    x = 21,714.06

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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.