Home / 33,072.12-45,621.33-20,950.40

Finding the Fourth Proportional to 33,072.12, 45,621.33 and 20,950.40

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Solution

The fourth proportional to 33,072.12, 45,621.33 and 20,950.40 is: 28,900.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,072.12 : 45,621.33 = 20,950.40 : x
  2. Step 2: Convert to fraction form
    33,072.12/45,621.33 = 20,950.40/x
  3. Step 3: Cross multiply
    33,072.12x = 45,621.33 × 20,950.40
  4. Step 4: Simplify right side
    33,072.12x = 955,784,883.93
  5. Step 5: Solve for x
    x = 955,784,883.93/33,072.12
  6. Step 6: Final answer
    x = 28,900.02

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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.