Home / 28,855.12-43,279.44-8,080.24

Finding the Fourth Proportional to 28,855.12, 43,279.44 and 8,080.24

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Solution

The fourth proportional to 28,855.12, 43,279.44 and 8,080.24 is: 12,119.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,855.12 : 43,279.44 = 8,080.24 : x
  2. Step 2: Convert to fraction form
    28,855.12/43,279.44 = 8,080.24/x
  3. Step 3: Cross multiply
    28,855.12x = 43,279.44 × 8,080.24
  4. Step 4: Simplify right side
    28,855.12x = 349,708,262.27
  5. Step 5: Solve for x
    x = 349,708,262.27/28,855.12
  6. Step 6: Final answer
    x = 12,119.45

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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.