Home / 20,696.86-28,560.82-11,744.17

Finding the Fourth Proportional to 20,696.86, 28,560.82 and 11,744.17

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Solution

The fourth proportional to 20,696.86, 28,560.82 and 11,744.17 is: 16,206.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,696.86 : 28,560.82 = 11,744.17 : x
  2. Step 2: Convert to fraction form
    20,696.86/28,560.82 = 11,744.17/x
  3. Step 3: Cross multiply
    20,696.86x = 28,560.82 × 11,744.17
  4. Step 4: Simplify right side
    20,696.86x = 335,423,125.42
  5. Step 5: Solve for x
    x = 335,423,125.42/20,696.86
  6. Step 6: Final answer
    x = 16,206.47

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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.