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Finding the Fourth Proportional to 22,230.30, 33,345.45 and 19,811.10

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Solution

The fourth proportional to 22,230.30, 33,345.45 and 19,811.10 is: 29,716.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,230.30 : 33,345.45 = 19,811.10 : x
  2. Step 2: Convert to fraction form
    22,230.30/33,345.45 = 19,811.10/x
  3. Step 3: Cross multiply
    22,230.30x = 33,345.45 × 19,811.10
  4. Step 4: Simplify right side
    22,230.30x = 660,610,044.50
  5. Step 5: Solve for x
    x = 660,610,044.50/22,230.30
  6. Step 6: Final answer
    x = 29,716.65

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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.