Home / 28,704.90-39,613.11-15,958.86

Finding the Fourth Proportional to 28,704.90, 39,613.11 and 15,958.86

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Solution

The fourth proportional to 28,704.90, 39,613.11 and 15,958.86 is: 22,023.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,704.90 : 39,613.11 = 15,958.86 : x
  2. Step 2: Convert to fraction form
    28,704.90/39,613.11 = 15,958.86/x
  3. Step 3: Cross multiply
    28,704.90x = 39,613.11 × 15,958.86
  4. Step 4: Simplify right side
    28,704.90x = 632,180,076.65
  5. Step 5: Solve for x
    x = 632,180,076.65/28,704.90
  6. Step 6: Final answer
    x = 22,023.42

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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.