Home / 33,163.65-45,754.61-20,403.72

Finding the Fourth Proportional to 33,163.65, 45,754.61 and 20,403.72

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Solution

The fourth proportional to 33,163.65, 45,754.61 and 20,403.72 is: 28,150.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,163.65 : 45,754.61 = 20,403.72 : x
  2. Step 2: Convert to fraction form
    33,163.65/45,754.61 = 20,403.72/x
  3. Step 3: Cross multiply
    33,163.65x = 45,754.61 × 20,403.72
  4. Step 4: Simplify right side
    33,163.65x = 933,564,149.13
  5. Step 5: Solve for x
    x = 933,564,149.13/33,163.65
  6. Step 6: Final answer
    x = 28,150.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.