Home / 26,872.96-37,081.88-15,540.72

Finding the Fourth Proportional to 26,872.96, 37,081.88 and 15,540.72

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Solution

The fourth proportional to 26,872.96, 37,081.88 and 15,540.72 is: 21,444.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,872.96 : 37,081.88 = 15,540.72 : x
  2. Step 2: Convert to fraction form
    26,872.96/37,081.88 = 15,540.72/x
  3. Step 3: Cross multiply
    26,872.96x = 37,081.88 × 15,540.72
  4. Step 4: Simplify right side
    26,872.96x = 576,279,114.15
  5. Step 5: Solve for x
    x = 576,279,114.15/26,872.96
  6. Step 6: Final answer
    x = 21,444.57

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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.