Home / 36,835.11-50,832.81-20,919.90

Finding the Fourth Proportional to 36,835.11, 50,832.81 and 20,919.90

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Solution

The fourth proportional to 36,835.11, 50,832.81 and 20,919.90 is: 28,869.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,835.11 : 50,832.81 = 20,919.90 : x
  2. Step 2: Convert to fraction form
    36,835.11/50,832.81 = 20,919.90/x
  3. Step 3: Cross multiply
    36,835.11x = 50,832.81 × 20,919.90
  4. Step 4: Simplify right side
    36,835.11x = 1,063,417,301.92
  5. Step 5: Solve for x
    x = 1,063,417,301.92/36,835.11
  6. Step 6: Final answer
    x = 28,869.67

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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.