Home / 30,067.52-45,111.81-9,291.02

Finding the Fourth Proportional to 30,067.52, 45,111.81 and 9,291.02

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Solution

The fourth proportional to 30,067.52, 45,111.81 and 9,291.02 is: 13,939.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,067.52 : 45,111.81 = 9,291.02 : x
  2. Step 2: Convert to fraction form
    30,067.52/45,111.81 = 9,291.02/x
  3. Step 3: Cross multiply
    30,067.52x = 45,111.81 × 9,291.02
  4. Step 4: Simplify right side
    30,067.52x = 419,134,728.95
  5. Step 5: Solve for x
    x = 419,134,728.95/30,067.52
  6. Step 6: Final answer
    x = 13,939.78

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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.