Home / 39,324.35-54,268.23-21,419.70

Finding the Fourth Proportional to 39,324.35, 54,268.23 and 21,419.70

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Solution

The fourth proportional to 39,324.35, 54,268.23 and 21,419.70 is: 29,559.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,324.35 : 54,268.23 = 21,419.70 : x
  2. Step 2: Convert to fraction form
    39,324.35/54,268.23 = 21,419.70/x
  3. Step 3: Cross multiply
    39,324.35x = 54,268.23 × 21,419.70
  4. Step 4: Simplify right side
    39,324.35x = 1,162,409,206.13
  5. Step 5: Solve for x
    x = 1,162,409,206.13/39,324.35
  6. Step 6: Final answer
    x = 29,559.53

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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.