Home / 28,713.83-39,622.77-16,775.84

Finding the Fourth Proportional to 28,713.83, 39,622.77 and 16,775.84

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Solution

The fourth proportional to 28,713.83, 39,622.77 and 16,775.84 is: 23,149.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,713.83 : 39,622.77 = 16,775.84 : x
  2. Step 2: Convert to fraction form
    28,713.83/39,622.77 = 16,775.84/x
  3. Step 3: Cross multiply
    28,713.83x = 39,622.77 × 16,775.84
  4. Step 4: Simplify right side
    28,713.83x = 664,705,348.93
  5. Step 5: Solve for x
    x = 664,705,348.93/28,713.83
  6. Step 6: Final answer
    x = 23,149.31

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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.