Home / 20,561,259.12-28,374,704.28-11,394,054.96

Finding the Fourth Proportional to 20,561,259.12, 28,374,704.28 and 11,394,054.96

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Solution

The fourth proportional to 20,561,259.12, 28,374,704.28 and 11,394,054.96 is: 15,723,888.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,561,259.12 : 28,374,704.28 = 11,394,054.96 : x
  2. Step 2: Convert to fraction form
    20,561,259.12/28,374,704.28 = 11,394,054.96/x
  3. Step 3: Cross multiply
    20,561,259.12x = 28,374,704.28 × 11,394,054.96
  4. Step 4: Simplify right side
    20,561,259.12x = 323,302,940,040,067.25
  5. Step 5: Solve for x
    x = 323,302,940,040,067.25/20,561,259.12
  6. Step 6: Final answer
    x = 15,723,888.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.