Home / 20,960.00-28,924.22-11,528.57

Finding the Fourth Proportional to 20,960.00, 28,924.22 and 11,528.57

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Solution

The fourth proportional to 20,960.00, 28,924.22 and 11,528.57 is: 15,909.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,960.00 : 28,924.22 = 11,528.57 : x
  2. Step 2: Convert to fraction form
    20,960.00/28,924.22 = 11,528.57/x
  3. Step 3: Cross multiply
    20,960.00x = 28,924.22 × 11,528.57
  4. Step 4: Simplify right side
    20,960.00x = 333,454,692.70
  5. Step 5: Solve for x
    x = 333,454,692.70/20,960.00
  6. Step 6: Final answer
    x = 15,909.10

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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.