Home / 21,065.76-29,071.68-11,634.96

Finding the Fourth Proportional to 21,065.76, 29,071.68 and 11,634.96

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Solution

The fourth proportional to 21,065.76, 29,071.68 and 11,634.96 is: 16,056.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,065.76 : 29,071.68 = 11,634.96 : x
  2. Step 2: Convert to fraction form
    21,065.76/29,071.68 = 11,634.96/x
  3. Step 3: Cross multiply
    21,065.76x = 29,071.68 × 11,634.96
  4. Step 4: Simplify right side
    21,065.76x = 338,247,833.93
  5. Step 5: Solve for x
    x = 338,247,833.93/21,065.76
  6. Step 6: Final answer
    x = 16,056.76

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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.