Home / 28,130.70-38,813.94-16,191.84

Finding the Fourth Proportional to 28,130.70, 38,813.94 and 16,191.84

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Solution

The fourth proportional to 28,130.70, 38,813.94 and 16,191.84 is: 22,341.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,130.70 : 38,813.94 = 16,191.84 : x
  2. Step 2: Convert to fraction form
    28,130.70/38,813.94 = 16,191.84/x
  3. Step 3: Cross multiply
    28,130.70x = 38,813.94 × 16,191.84
  4. Step 4: Simplify right side
    28,130.70x = 628,469,106.25
  5. Step 5: Solve for x
    x = 628,469,106.25/28,130.70
  6. Step 6: Final answer
    x = 22,341.04

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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.