Home / 20,015.27-29,981.38-11,669.97

Finding the Fourth Proportional to 20,015.27, 29,981.38 and 11,669.97

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Solution

The fourth proportional to 20,015.27, 29,981.38 and 11,669.97 is: 17,480.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,015.27 : 29,981.38 = 11,669.97 : x
  2. Step 2: Convert to fraction form
    20,015.27/29,981.38 = 11,669.97/x
  3. Step 3: Cross multiply
    20,015.27x = 29,981.38 × 11,669.97
  4. Step 4: Simplify right side
    20,015.27x = 349,881,805.16
  5. Step 5: Solve for x
    x = 349,881,805.16/20,015.27
  6. Step 6: Final answer
    x = 17,480.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.