Home / 39,824.79-54,958.23-21,919.67

Finding the Fourth Proportional to 39,824.79, 54,958.23 and 21,919.67

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Solution

The fourth proportional to 39,824.79, 54,958.23 and 21,919.67 is: 30,249.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,824.79 : 54,958.23 = 21,919.67 : x
  2. Step 2: Convert to fraction form
    39,824.79/54,958.23 = 21,919.67/x
  3. Step 3: Cross multiply
    39,824.79x = 54,958.23 × 21,919.67
  4. Step 4: Simplify right side
    39,824.79x = 1,204,666,265.38
  5. Step 5: Solve for x
    x = 1,204,666,265.38/39,824.79
  6. Step 6: Final answer
    x = 30,249.15

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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.