Home / 20,276.44-27,981.18-11,324.07

Finding the Fourth Proportional to 20,276.44, 27,981.18 and 11,324.07

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Solution

The fourth proportional to 20,276.44, 27,981.18 and 11,324.07 is: 15,627.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,276.44 : 27,981.18 = 11,324.07 : x
  2. Step 2: Convert to fraction form
    20,276.44/27,981.18 = 11,324.07/x
  3. Step 3: Cross multiply
    20,276.44x = 27,981.18 × 11,324.07
  4. Step 4: Simplify right side
    20,276.44x = 316,860,841.00
  5. Step 5: Solve for x
    x = 316,860,841.00/20,276.44
  6. Step 6: Final answer
    x = 15,627.05

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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.