Home / 20,263.57-27,963.80-11,310.91

Finding the Fourth Proportional to 20,263.57, 27,963.80 and 11,310.91

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Solution

The fourth proportional to 20,263.57, 27,963.80 and 11,310.91 is: 15,609.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,263.57 : 27,963.80 = 11,310.91 : x
  2. Step 2: Convert to fraction form
    20,263.57/27,963.80 = 11,310.91/x
  3. Step 3: Cross multiply
    20,263.57x = 27,963.80 × 11,310.91
  4. Step 4: Simplify right side
    20,263.57x = 316,296,025.06
  5. Step 5: Solve for x
    x = 316,296,025.06/20,263.57
  6. Step 6: Final answer
    x = 15,609.10

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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.