Home / 28,770.90-39,700.17-16,193.22

Finding the Fourth Proportional to 28,770.90, 39,700.17 and 16,193.22

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Solution

The fourth proportional to 28,770.90, 39,700.17 and 16,193.22 is: 22,344.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,770.90 : 39,700.17 = 16,193.22 : x
  2. Step 2: Convert to fraction form
    28,770.90/39,700.17 = 16,193.22/x
  3. Step 3: Cross multiply
    28,770.90x = 39,700.17 × 16,193.22
  4. Step 4: Simplify right side
    28,770.90x = 642,873,586.85
  5. Step 5: Solve for x
    x = 642,873,586.85/28,770.90
  6. Step 6: Final answer
    x = 22,344.58

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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.