Home / 28,766.75-39,700.28-16,191.23

Finding the Fourth Proportional to 28,766.75, 39,700.28 and 16,191.23

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Solution

The fourth proportional to 28,766.75, 39,700.28 and 16,191.23 is: 22,345.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,766.75 : 39,700.28 = 16,191.23 : x
  2. Step 2: Convert to fraction form
    28,766.75/39,700.28 = 16,191.23/x
  3. Step 3: Cross multiply
    28,766.75x = 39,700.28 × 16,191.23
  4. Step 4: Simplify right side
    28,766.75x = 642,796,364.54
  5. Step 5: Solve for x
    x = 642,796,364.54/28,766.75
  6. Step 6: Final answer
    x = 22,345.12

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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.