Home / 28,398.74-39,190.41-16,469.15

Finding the Fourth Proportional to 28,398.74, 39,190.41 and 16,469.15

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Solution

The fourth proportional to 28,398.74, 39,190.41 and 16,469.15 is: 22,727.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,398.74 : 39,190.41 = 16,469.15 : x
  2. Step 2: Convert to fraction form
    28,398.74/39,190.41 = 16,469.15/x
  3. Step 3: Cross multiply
    28,398.74x = 39,190.41 × 16,469.15
  4. Step 4: Simplify right side
    28,398.74x = 645,432,544.90
  5. Step 5: Solve for x
    x = 645,432,544.90/28,398.74
  6. Step 6: Final answer
    x = 22,727.51

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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.