Home / 20,073.36-27,701.18-11,120.84

Finding the Fourth Proportional to 20,073.36, 27,701.18 and 11,120.84

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Solution

The fourth proportional to 20,073.36, 27,701.18 and 11,120.84 is: 15,346.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,073.36 : 27,701.18 = 11,120.84 : x
  2. Step 2: Convert to fraction form
    20,073.36/27,701.18 = 11,120.84/x
  3. Step 3: Cross multiply
    20,073.36x = 27,701.18 × 11,120.84
  4. Step 4: Simplify right side
    20,073.36x = 308,060,390.59
  5. Step 5: Solve for x
    x = 308,060,390.59/20,073.36
  6. Step 6: Final answer
    x = 15,346.73

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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.