Home / 28,398.94-39,190.55-16,469.19

Finding the Fourth Proportional to 28,398.94, 39,190.55 and 16,469.19

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Solution

The fourth proportional to 28,398.94, 39,190.55 and 16,469.19 is: 22,727.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,398.94 : 39,190.55 = 16,469.19 : x
  2. Step 2: Convert to fraction form
    28,398.94/39,190.55 = 16,469.19/x
  3. Step 3: Cross multiply
    28,398.94x = 39,190.55 × 16,469.19
  4. Step 4: Simplify right side
    28,398.94x = 645,436,531.81
  5. Step 5: Solve for x
    x = 645,436,531.81/28,398.94
  6. Step 6: Final answer
    x = 22,727.49

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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.