Home / 22,119.78-33,009.80-19,755.09

Finding the Fourth Proportional to 22,119.78, 33,009.80 and 19,755.09

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Solution

The fourth proportional to 22,119.78, 33,009.80 and 19,755.09 is: 29,480.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,119.78 : 33,009.80 = 19,755.09 : x
  2. Step 2: Convert to fraction form
    22,119.78/33,009.80 = 19,755.09/x
  3. Step 3: Cross multiply
    22,119.78x = 33,009.80 × 19,755.09
  4. Step 4: Simplify right side
    22,119.78x = 652,111,637.79
  5. Step 5: Solve for x
    x = 652,111,637.79/22,119.78
  6. Step 6: Final answer
    x = 29,480.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.