Home / 28,469.22-39,255.57-18,384.42

Finding the Fourth Proportional to 28,469.22, 39,255.57 and 18,384.42

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Solution

The fourth proportional to 28,469.22, 39,255.57 and 18,384.42 is: 25,349.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,469.22 : 39,255.57 = 18,384.42 : x
  2. Step 2: Convert to fraction form
    28,469.22/39,255.57 = 18,384.42/x
  3. Step 3: Cross multiply
    28,469.22x = 39,255.57 × 18,384.42
  4. Step 4: Simplify right side
    28,469.22x = 721,690,886.22
  5. Step 5: Solve for x
    x = 721,690,886.22/28,469.22
  6. Step 6: Final answer
    x = 25,349.87

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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.