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Finding the Fourth Proportional to 22,009.05, 33,005.48 and 7,218.45

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Solution

The fourth proportional to 22,009.05, 33,005.48 and 7,218.45 is: 10,825.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,009.05 : 33,005.48 = 7,218.45 : x
  2. Step 2: Convert to fraction form
    22,009.05/33,005.48 = 7,218.45/x
  3. Step 3: Cross multiply
    22,009.05x = 33,005.48 × 7,218.45
  4. Step 4: Simplify right side
    22,009.05x = 238,248,371.01
  5. Step 5: Solve for x
    x = 238,248,371.01/22,009.05
  6. Step 6: Final answer
    x = 10,825.02

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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.