Home / 39,324.99-54,268.13-21,419.84

Finding the Fourth Proportional to 39,324.99, 54,268.13 and 21,419.84

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Solution

The fourth proportional to 39,324.99, 54,268.13 and 21,419.84 is: 29,559.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,324.99 : 54,268.13 = 21,419.84 : x
  2. Step 2: Convert to fraction form
    39,324.99/54,268.13 = 21,419.84/x
  3. Step 3: Cross multiply
    39,324.99x = 54,268.13 × 21,419.84
  4. Step 4: Simplify right side
    39,324.99x = 1,162,414,730.43
  5. Step 5: Solve for x
    x = 1,162,414,730.43/39,324.99
  6. Step 6: Final answer
    x = 29,559.18

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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.