Home / 20,020-27,629.22-11,638.12

Finding the Fourth Proportional to 20,020, 27,629.22 and 11,638.12

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Solution

The fourth proportional to 20,020, 27,629.22 and 11,638.12 is: 16,061.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020 : 27,629.22 = 11,638.12 : x
  2. Step 2: Convert to fraction form
    20,020/27,629.22 = 11,638.12/x
  3. Step 3: Cross multiply
    20,020x = 27,629.22 × 11,638.12
  4. Step 4: Simplify right side
    20,020x = 321,552,177.87
  5. Step 5: Solve for x
    x = 321,552,177.87/20,020
  6. Step 6: Final answer
    x = 16,061.55

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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.