Home / 20,752.88-31,101.62-11,378.74

Finding the Fourth Proportional to 20,752.88, 31,101.62 and 11,378.74

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Solution

The fourth proportional to 20,752.88, 31,101.62 and 11,378.74 is: 17,052.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,752.88 : 31,101.62 = 11,378.74 : x
  2. Step 2: Convert to fraction form
    20,752.88/31,101.62 = 11,378.74/x
  3. Step 3: Cross multiply
    20,752.88x = 31,101.62 × 11,378.74
  4. Step 4: Simplify right side
    20,752.88x = 353,897,247.56
  5. Step 5: Solve for x
    x = 353,897,247.56/20,752.88
  6. Step 6: Final answer
    x = 17,052.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.