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Finding the Fourth Proportional to 22,143.51, 33,043.95 and 19,778.04

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Solution

The fourth proportional to 22,143.51, 33,043.95 and 19,778.04 is: 29,514.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,143.51 : 33,043.95 = 19,778.04 : x
  2. Step 2: Convert to fraction form
    22,143.51/33,043.95 = 19,778.04/x
  3. Step 3: Cross multiply
    22,143.51x = 33,043.95 × 19,778.04
  4. Step 4: Simplify right side
    22,143.51x = 653,544,564.86
  5. Step 5: Solve for x
    x = 653,544,564.86/22,143.51
  6. Step 6: Final answer
    x = 29,514.05

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