Home / 36,287.38-54,430.26-9,991.54

Finding the Fourth Proportional to 36,287.38, 54,430.26 and 9,991.54

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Solution

The fourth proportional to 36,287.38, 54,430.26 and 9,991.54 is: 14,987.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,287.38 : 54,430.26 = 9,991.54 : x
  2. Step 2: Convert to fraction form
    36,287.38/54,430.26 = 9,991.54/x
  3. Step 3: Cross multiply
    36,287.38x = 54,430.26 × 9,991.54
  4. Step 4: Simplify right side
    36,287.38x = 543,842,120.00
  5. Step 5: Solve for x
    x = 543,842,120.00/36,287.38
  6. Step 6: Final answer
    x = 14,987.09

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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.