Home / 28,371.12-39,156.89-16,441.71

Finding the Fourth Proportional to 28,371.12, 39,156.89 and 16,441.71

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Solution

The fourth proportional to 28,371.12, 39,156.89 and 16,441.71 is: 22,692.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,371.12 : 39,156.89 = 16,441.71 : x
  2. Step 2: Convert to fraction form
    28,371.12/39,156.89 = 16,441.71/x
  3. Step 3: Cross multiply
    28,371.12x = 39,156.89 × 16,441.71
  4. Step 4: Simplify right side
    28,371.12x = 643,806,147.67
  5. Step 5: Solve for x
    x = 643,806,147.67/28,371.12
  6. Step 6: Final answer
    x = 22,692.31

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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.