Home / 20,197.31-27,871.63-11,244.51

Finding the Fourth Proportional to 20,197.31, 27,871.63 and 11,244.51

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Solution

The fourth proportional to 20,197.31, 27,871.63 and 11,244.51 is: 15,517.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,197.31 : 27,871.63 = 11,244.51 : x
  2. Step 2: Convert to fraction form
    20,197.31/27,871.63 = 11,244.51/x
  3. Step 3: Cross multiply
    20,197.31x = 27,871.63 × 11,244.51
  4. Step 4: Simplify right side
    20,197.31x = 313,402,794.14
  5. Step 5: Solve for x
    x = 313,402,794.14/20,197.31
  6. Step 6: Final answer
    x = 15,517.06

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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.