Home / 28,566.36-39,421.56-15,991.11

Finding the Fourth Proportional to 28,566.36, 39,421.56 and 15,991.11

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Solution

The fourth proportional to 28,566.36, 39,421.56 and 15,991.11 is: 22,067.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,566.36 : 39,421.56 = 15,991.11 : x
  2. Step 2: Convert to fraction form
    28,566.36/39,421.56 = 15,991.11/x
  3. Step 3: Cross multiply
    28,566.36x = 39,421.56 × 15,991.11
  4. Step 4: Simplify right side
    28,566.36x = 630,394,502.33
  5. Step 5: Solve for x
    x = 630,394,502.33/28,566.36
  6. Step 6: Final answer
    x = 22,067.72

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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.