Home / 33,758.40-50,632.80-10,387.20

Finding the Fourth Proportional to 33,758.40, 50,632.80 and 10,387.20

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Solution

The fourth proportional to 33,758.40, 50,632.80 and 10,387.20 is: 15,579.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,758.40 : 50,632.80 = 10,387.20 : x
  2. Step 2: Convert to fraction form
    33,758.40/50,632.80 = 10,387.20/x
  3. Step 3: Cross multiply
    33,758.40x = 50,632.80 × 10,387.20
  4. Step 4: Simplify right side
    33,758.40x = 525,933,020.16
  5. Step 5: Solve for x
    x = 525,933,020.16/33,758.40
  6. Step 6: Final answer
    x = 15,579.32

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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.