Home / 20,073.33-27,700.40-11,120.97

Finding the Fourth Proportional to 20,073.33, 27,700.40 and 11,120.97

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Solution

The fourth proportional to 20,073.33, 27,700.40 and 11,120.97 is: 15,346.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,073.33 : 27,700.40 = 11,120.97 : x
  2. Step 2: Convert to fraction form
    20,073.33/27,700.40 = 11,120.97/x
  3. Step 3: Cross multiply
    20,073.33x = 27,700.40 × 11,120.97
  4. Step 4: Simplify right side
    20,073.33x = 308,055,345.19
  5. Step 5: Solve for x
    x = 308,055,345.19/20,073.33
  6. Step 6: Final answer
    x = 15,346.50

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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.