Home / 20,696.94-28,561.23-11,265.30

Finding the Fourth Proportional to 20,696.94, 28,561.23 and 11,265.30

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Solution

The fourth proportional to 20,696.94, 28,561.23 and 11,265.30 is: 15,545.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,696.94 : 28,561.23 = 11,265.30 : x
  2. Step 2: Convert to fraction form
    20,696.94/28,561.23 = 11,265.30/x
  3. Step 3: Cross multiply
    20,696.94x = 28,561.23 × 11,265.30
  4. Step 4: Simplify right side
    20,696.94x = 321,750,824.32
  5. Step 5: Solve for x
    x = 321,750,824.32/20,696.94
  6. Step 6: Final answer
    x = 15,545.82

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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.