Home / 39,389.09-54,358.38-22,396.19

Finding the Fourth Proportional to 39,389.09, 54,358.38 and 22,396.19

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Solution

The fourth proportional to 39,389.09, 54,358.38 and 22,396.19 is: 30,907.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,389.09 : 54,358.38 = 22,396.19 : x
  2. Step 2: Convert to fraction form
    39,389.09/54,358.38 = 22,396.19/x
  3. Step 3: Cross multiply
    39,389.09x = 54,358.38 × 22,396.19
  4. Step 4: Simplify right side
    39,389.09x = 1,217,420,334.78
  5. Step 5: Solve for x
    x = 1,217,420,334.78/39,389.09
  6. Step 6: Final answer
    x = 30,907.56

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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.