Home / 28,566-39,421.08-15,991.02

Finding the Fourth Proportional to 28,566, 39,421.08 and 15,991.02

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Solution

The fourth proportional to 28,566, 39,421.08 and 15,991.02 is: 22,067.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,566 : 39,421.08 = 15,991.02 : x
  2. Step 2: Convert to fraction form
    28,566/39,421.08 = 15,991.02/x
  3. Step 3: Cross multiply
    28,566x = 39,421.08 × 15,991.02
  4. Step 4: Simplify right side
    28,566x = 630,383,278.70
  5. Step 5: Solve for x
    x = 630,383,278.70/28,566
  6. Step 6: Final answer
    x = 22,067.61

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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.