Home / 28,722.06-43,080.36-9,000.79

Finding the Fourth Proportional to 28,722.06, 43,080.36 and 9,000.79

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Solution

The fourth proportional to 28,722.06, 43,080.36 and 9,000.79 is: 13,500.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,722.06 : 43,080.36 = 9,000.79 : x
  2. Step 2: Convert to fraction form
    28,722.06/43,080.36 = 9,000.79/x
  3. Step 3: Cross multiply
    28,722.06x = 43,080.36 × 9,000.79
  4. Step 4: Simplify right side
    28,722.06x = 387,757,132.03
  5. Step 5: Solve for x
    x = 387,757,132.03/28,722.06
  6. Step 6: Final answer
    x = 13,500.32

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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.