Home / 20,245.32-27,938.57-11,749.10

Finding the Fourth Proportional to 20,245.32, 27,938.57 and 11,749.10

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Solution

The fourth proportional to 20,245.32, 27,938.57 and 11,749.10 is: 16,213.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,245.32 : 27,938.57 = 11,749.10 : x
  2. Step 2: Convert to fraction form
    20,245.32/27,938.57 = 11,749.10/x
  3. Step 3: Cross multiply
    20,245.32x = 27,938.57 × 11,749.10
  4. Step 4: Simplify right side
    20,245.32x = 328,252,854.35
  5. Step 5: Solve for x
    x = 328,252,854.35/20,245.32
  6. Step 6: Final answer
    x = 16,213.76

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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.