Home / 28,766.90-39,694.65-16,189.22

Finding the Fourth Proportional to 28,766.90, 39,694.65 and 16,189.22

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Solution

The fourth proportional to 28,766.90, 39,694.65 and 16,189.22 is: 22,339.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,766.90 : 39,694.65 = 16,189.22 : x
  2. Step 2: Convert to fraction form
    28,766.90/39,694.65 = 16,189.22/x
  3. Step 3: Cross multiply
    28,766.90x = 39,694.65 × 16,189.22
  4. Step 4: Simplify right side
    28,766.90x = 642,625,421.67
  5. Step 5: Solve for x
    x = 642,625,421.67/28,766.90
  6. Step 6: Final answer
    x = 22,339.06

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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.