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Finding the Fourth Proportional to 22,140.95, 33,210 and 8,992.97

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Solution

The fourth proportional to 22,140.95, 33,210 and 8,992.97 is: 13,488.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,140.95 : 33,210 = 8,992.97 : x
  2. Step 2: Convert to fraction form
    22,140.95/33,210 = 8,992.97/x
  3. Step 3: Cross multiply
    22,140.95x = 33,210 × 8,992.97
  4. Step 4: Simplify right side
    22,140.95x = 298,656,678.99
  5. Step 5: Solve for x
    x = 298,656,678.99/22,140.95
  6. Step 6: Final answer
    x = 13,488.89

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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.