Home / 28,865.20-39,839.90-16,934.80

Finding the Fourth Proportional to 28,865.20, 39,839.90 and 16,934.80

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Solution

The fourth proportional to 28,865.20, 39,839.90 and 16,934.80 is: 23,373.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,865.20 : 39,839.90 = 16,934.80 : x
  2. Step 2: Convert to fraction form
    28,865.20/39,839.90 = 16,934.80/x
  3. Step 3: Cross multiply
    28,865.20x = 39,839.90 × 16,934.80
  4. Step 4: Simplify right side
    28,865.20x = 674,680,738.52
  5. Step 5: Solve for x
    x = 674,680,738.52/28,865.20
  6. Step 6: Final answer
    x = 23,373.50

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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.