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Finding the Fourth Proportional to 20,150.71, 27,808.11 and 11,652.93

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Solution

The fourth proportional to 20,150.71, 27,808.11 and 11,652.93 is: 16,081.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.71 : 27,808.11 = 11,652.93 : x
  2. Step 2: Convert to fraction form
    20,150.71/27,808.11 = 11,652.93/x
  3. Step 3: Cross multiply
    20,150.71x = 27,808.11 × 11,652.93
  4. Step 4: Simplify right side
    20,150.71x = 324,045,959.26
  5. Step 5: Solve for x
    x = 324,045,959.26/20,150.71
  6. Step 6: Final answer
    x = 16,081.12

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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.