Home / 28,856.44-39,821.10-16,282.36

Finding the Fourth Proportional to 28,856.44, 39,821.10 and 16,282.36

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Solution

The fourth proportional to 28,856.44, 39,821.10 and 16,282.36 is: 22,469.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,856.44 : 39,821.10 = 16,282.36 : x
  2. Step 2: Convert to fraction form
    28,856.44/39,821.10 = 16,282.36/x
  3. Step 3: Cross multiply
    28,856.44x = 39,821.10 × 16,282.36
  4. Step 4: Simplify right side
    28,856.44x = 648,381,485.80
  5. Step 5: Solve for x
    x = 648,381,485.80/28,856.44
  6. Step 6: Final answer
    x = 22,469.21

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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.