Home / 20,324.42-28,047.78-11,372.51

Finding the Fourth Proportional to 20,324.42, 28,047.78 and 11,372.51

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Solution

The fourth proportional to 20,324.42, 28,047.78 and 11,372.51 is: 15,694.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,324.42 : 28,047.78 = 11,372.51 : x
  2. Step 2: Convert to fraction form
    20,324.42/28,047.78 = 11,372.51/x
  3. Step 3: Cross multiply
    20,324.42x = 28,047.78 × 11,372.51
  4. Step 4: Simplify right side
    20,324.42x = 318,973,658.53
  5. Step 5: Solve for x
    x = 318,973,658.53/20,324.42
  6. Step 6: Final answer
    x = 15,694.11

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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.