Home / 28,965.11-39,968.34-16,217.29

Finding the Fourth Proportional to 28,965.11, 39,968.34 and 16,217.29

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Solution

The fourth proportional to 28,965.11, 39,968.34 and 16,217.29 is: 22,377.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,965.11 : 39,968.34 = 16,217.29 : x
  2. Step 2: Convert to fraction form
    28,965.11/39,968.34 = 16,217.29/x
  3. Step 3: Cross multiply
    28,965.11x = 39,968.34 × 16,217.29
  4. Step 4: Simplify right side
    28,965.11x = 648,178,037.33
  5. Step 5: Solve for x
    x = 648,178,037.33/28,965.11
  6. Step 6: Final answer
    x = 22,377.89

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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.