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Finding the Fourth Proportional to 27,308.80, 40,963.20 and 26,579.80

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Solution

The fourth proportional to 27,308.80, 40,963.20 and 26,579.80 is: 39,869.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,308.80 : 40,963.20 = 26,579.80 : x
  2. Step 2: Convert to fraction form
    27,308.80/40,963.20 = 26,579.80/x
  3. Step 3: Cross multiply
    27,308.80x = 40,963.20 × 26,579.80
  4. Step 4: Simplify right side
    27,308.80x = 1,088,793,663.36
  5. Step 5: Solve for x
    x = 1,088,793,663.36/27,308.80
  6. Step 6: Final answer
    x = 39,869.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.