Home / 28,891.11-39,869.22-16,144.56

Finding the Fourth Proportional to 28,891.11, 39,869.22 and 16,144.56

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Solution

The fourth proportional to 28,891.11, 39,869.22 and 16,144.56 is: 22,279.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,891.11 : 39,869.22 = 16,144.56 : x
  2. Step 2: Convert to fraction form
    28,891.11/39,869.22 = 16,144.56/x
  3. Step 3: Cross multiply
    28,891.11x = 39,869.22 × 16,144.56
  4. Step 4: Simplify right side
    28,891.11x = 643,671,014.44
  5. Step 5: Solve for x
    x = 643,671,014.44/28,891.11
  6. Step 6: Final answer
    x = 22,279.21

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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.