Home / 28,859.22-39,825.81-16,283.70

Finding the Fourth Proportional to 28,859.22, 39,825.81 and 16,283.70

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Solution

The fourth proportional to 28,859.22, 39,825.81 and 16,283.70 is: 22,471.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,859.22 : 39,825.81 = 16,283.70 : x
  2. Step 2: Convert to fraction form
    28,859.22/39,825.81 = 16,283.70/x
  3. Step 3: Cross multiply
    28,859.22x = 39,825.81 × 16,283.70
  4. Step 4: Simplify right side
    28,859.22x = 648,511,542.30
  5. Step 5: Solve for x
    x = 648,511,542.30/28,859.22
  6. Step 6: Final answer
    x = 22,471.55

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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.