Home / 28,782.12-43,173.18-27,157.80

Finding the Fourth Proportional to 28,782.12, 43,173.18 and 27,157.80

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Solution

The fourth proportional to 28,782.12, 43,173.18 and 27,157.80 is: 40,736.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,782.12 : 43,173.18 = 27,157.80 : x
  2. Step 2: Convert to fraction form
    28,782.12/43,173.18 = 27,157.80/x
  3. Step 3: Cross multiply
    28,782.12x = 43,173.18 × 27,157.80
  4. Step 4: Simplify right side
    28,782.12x = 1,172,488,587.80
  5. Step 5: Solve for x
    x = 1,172,488,587.80/28,782.12
  6. Step 6: Final answer
    x = 40,736.70

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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.