Home / 28,796.59-39,740.10-16,860.43

Finding the Fourth Proportional to 28,796.59, 39,740.10 and 16,860.43

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Solution

The fourth proportional to 28,796.59, 39,740.10 and 16,860.43 is: 23,267.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,796.59 : 39,740.10 = 16,860.43 : x
  2. Step 2: Convert to fraction form
    28,796.59/39,740.10 = 16,860.43/x
  3. Step 3: Cross multiply
    28,796.59x = 39,740.10 × 16,860.43
  4. Step 4: Simplify right side
    28,796.59x = 670,034,975.54
  5. Step 5: Solve for x
    x = 670,034,975.54/28,796.59
  6. Step 6: Final answer
    x = 23,267.86

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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.