Home / 21,199.68-29,256.92-12,247.56

Finding the Fourth Proportional to 21,199.68, 29,256.92 and 12,247.56

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Solution

The fourth proportional to 21,199.68, 29,256.92 and 12,247.56 is: 16,902.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,199.68 : 29,256.92 = 12,247.56 : x
  2. Step 2: Convert to fraction form
    21,199.68/29,256.92 = 12,247.56/x
  3. Step 3: Cross multiply
    21,199.68x = 29,256.92 × 12,247.56
  4. Step 4: Simplify right side
    21,199.68x = 358,325,883.12
  5. Step 5: Solve for x
    x = 358,325,883.12/21,199.68
  6. Step 6: Final answer
    x = 16,902.42

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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.