Home / 20,718.26-28,592.80-11,768.56

Finding the Fourth Proportional to 20,718.26, 28,592.80 and 11,768.56

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Solution

The fourth proportional to 20,718.26, 28,592.80 and 11,768.56 is: 16,241.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,718.26 : 28,592.80 = 11,768.56 : x
  2. Step 2: Convert to fraction form
    20,718.26/28,592.80 = 11,768.56/x
  3. Step 3: Cross multiply
    20,718.26x = 28,592.80 × 11,768.56
  4. Step 4: Simplify right side
    20,718.26x = 336,496,082.37
  5. Step 5: Solve for x
    x = 336,496,082.37/20,718.26
  6. Step 6: Final answer
    x = 16,241.52

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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.