Home / 34,789.72-47,998.38-19,680.88

Finding the Fourth Proportional to 34,789.72, 47,998.38 and 19,680.88

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Solution

The fourth proportional to 34,789.72, 47,998.38 and 19,680.88 is: 27,153.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,789.72 : 47,998.38 = 19,680.88 : x
  2. Step 2: Convert to fraction form
    34,789.72/47,998.38 = 19,680.88/x
  3. Step 3: Cross multiply
    34,789.72x = 47,998.38 × 19,680.88
  4. Step 4: Simplify right side
    34,789.72x = 944,650,356.97
  5. Step 5: Solve for x
    x = 944,650,356.97/34,789.72
  6. Step 6: Final answer
    x = 27,153.15

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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.