Home / 20,131.74-27,785.36-15,052.74

Finding the Fourth Proportional to 20,131.74, 27,785.36 and 15,052.74

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Solution

The fourth proportional to 20,131.74, 27,785.36 and 15,052.74 is: 20,775.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,131.74 : 27,785.36 = 15,052.74 : x
  2. Step 2: Convert to fraction form
    20,131.74/27,785.36 = 15,052.74/x
  3. Step 3: Cross multiply
    20,131.74x = 27,785.36 × 15,052.74
  4. Step 4: Simplify right side
    20,131.74x = 418,245,733.32
  5. Step 5: Solve for x
    x = 418,245,733.32/20,131.74
  6. Step 6: Final answer
    x = 20,775.44

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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.