Home / 28,776.12-43,164.18-27,151.80

Finding the Fourth Proportional to 28,776.12, 43,164.18 and 27,151.80

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Solution

The fourth proportional to 28,776.12, 43,164.18 and 27,151.80 is: 40,727.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,776.12 : 43,164.18 = 27,151.80 : x
  2. Step 2: Convert to fraction form
    28,776.12/43,164.18 = 27,151.80/x
  3. Step 3: Cross multiply
    28,776.12x = 43,164.18 × 27,151.80
  4. Step 4: Simplify right side
    28,776.12x = 1,171,985,182.52
  5. Step 5: Solve for x
    x = 1,171,985,182.52/28,776.12
  6. Step 6: Final answer
    x = 40,727.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.