Home / 21,872.72-32,956.70-18,062.48

Finding the Fourth Proportional to 21,872.72, 32,956.70 and 18,062.48

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Solution

The fourth proportional to 21,872.72, 32,956.70 and 18,062.48 is: 27,215.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,872.72 : 32,956.70 = 18,062.48 : x
  2. Step 2: Convert to fraction form
    21,872.72/32,956.70 = 18,062.48/x
  3. Step 3: Cross multiply
    21,872.72x = 32,956.70 × 18,062.48
  4. Step 4: Simplify right side
    21,872.72x = 595,279,734.62
  5. Step 5: Solve for x
    x = 595,279,734.62/21,872.72
  6. Step 6: Final answer
    x = 27,215.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.