Home / 31,876.43-43,998.74-21,266.04

Finding the Fourth Proportional to 31,876.43, 43,998.74 and 21,266.04

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Solution

The fourth proportional to 31,876.43, 43,998.74 and 21,266.04 is: 29,353.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,876.43 : 43,998.74 = 21,266.04 : x
  2. Step 2: Convert to fraction form
    31,876.43/43,998.74 = 21,266.04/x
  3. Step 3: Cross multiply
    31,876.43x = 43,998.74 × 21,266.04
  4. Step 4: Simplify right side
    31,876.43x = 935,678,964.79
  5. Step 5: Solve for x
    x = 935,678,964.79/31,876.43
  6. Step 6: Final answer
    x = 29,353.32

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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.