Home / 26,981.17-40,479.66-13,842.70

Finding the Fourth Proportional to 26,981.17, 40,479.66 and 13,842.70

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Solution

The fourth proportional to 26,981.17, 40,479.66 and 13,842.70 is: 20,768.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,981.17 : 40,479.66 = 13,842.70 : x
  2. Step 2: Convert to fraction form
    26,981.17/40,479.66 = 13,842.70/x
  3. Step 3: Cross multiply
    26,981.17x = 40,479.66 × 13,842.70
  4. Step 4: Simplify right side
    26,981.17x = 560,347,789.48
  5. Step 5: Solve for x
    x = 560,347,789.48/26,981.17
  6. Step 6: Final answer
    x = 20,768.11

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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.