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Finding the Fourth Proportional to 22,998.68, 34,485 and 7,998.90

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Solution

The fourth proportional to 22,998.68, 34,485 and 7,998.90 is: 11,993.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,998.68 : 34,485 = 7,998.90 : x
  2. Step 2: Convert to fraction form
    22,998.68/34,485 = 7,998.90/x
  3. Step 3: Cross multiply
    22,998.68x = 34,485 × 7,998.90
  4. Step 4: Simplify right side
    22,998.68x = 275,842,066.50
  5. Step 5: Solve for x
    x = 275,842,066.50/22,998.68
  6. Step 6: Final answer
    x = 11,993.82

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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.