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Finding the Fourth Proportional to 30,320.72, 45,489.72 and 22,009.04

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Solution

The fourth proportional to 30,320.72, 45,489.72 and 22,009.04 is: 33,019.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,320.72 : 45,489.72 = 22,009.04 : x
  2. Step 2: Convert to fraction form
    30,320.72/45,489.72 = 22,009.04/x
  3. Step 3: Cross multiply
    30,320.72x = 45,489.72 × 22,009.04
  4. Step 4: Simplify right side
    30,320.72x = 1,001,185,067.07
  5. Step 5: Solve for x
    x = 1,001,185,067.07/30,320.72
  6. Step 6: Final answer
    x = 33,019.83

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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.