Home / 20,952.76-28,914.94-11,521.66

Finding the Fourth Proportional to 20,952.76, 28,914.94 and 11,521.66

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Solution

The fourth proportional to 20,952.76, 28,914.94 and 11,521.66 is: 15,899.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,952.76 : 28,914.94 = 11,521.66 : x
  2. Step 2: Convert to fraction form
    20,952.76/28,914.94 = 11,521.66/x
  3. Step 3: Cross multiply
    20,952.76x = 28,914.94 × 11,521.66
  4. Step 4: Simplify right side
    20,952.76x = 333,148,107.60
  5. Step 5: Solve for x
    x = 333,148,107.60/20,952.76
  6. Step 6: Final answer
    x = 15,899.96

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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.