Home / 28,766.92-39,697.86-16,191.40

Finding the Fourth Proportional to 28,766.92, 39,697.86 and 16,191.40

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Solution

The fourth proportional to 28,766.92, 39,697.86 and 16,191.40 is: 22,343.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,766.92 : 39,697.86 = 16,191.40 : x
  2. Step 2: Convert to fraction form
    28,766.92/39,697.86 = 16,191.40/x
  3. Step 3: Cross multiply
    28,766.92x = 39,697.86 × 16,191.40
  4. Step 4: Simplify right side
    28,766.92x = 642,763,930.40
  5. Step 5: Solve for x
    x = 642,763,930.40/28,766.92
  6. Step 6: Final answer
    x = 22,343.86

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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.