Home / 36,343.82-50,155.89-20,428.22

Finding the Fourth Proportional to 36,343.82, 50,155.89 and 20,428.22

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Solution

The fourth proportional to 36,343.82, 50,155.89 and 20,428.22 is: 28,191.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,343.82 : 50,155.89 = 20,428.22 : x
  2. Step 2: Convert to fraction form
    36,343.82/50,155.89 = 20,428.22/x
  3. Step 3: Cross multiply
    36,343.82x = 50,155.89 × 20,428.22
  4. Step 4: Simplify right side
    36,343.82x = 1,024,595,555.22
  5. Step 5: Solve for x
    x = 1,024,595,555.22/36,343.82
  6. Step 6: Final answer
    x = 28,191.74

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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.