Home / 39,469.13-54,465.78-21,564.75

Finding the Fourth Proportional to 39,469.13, 54,465.78 and 21,564.75

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Solution

The fourth proportional to 39,469.13, 54,465.78 and 21,564.75 is: 29,758.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,469.13 : 54,465.78 = 21,564.75 : x
  2. Step 2: Convert to fraction form
    39,469.13/54,465.78 = 21,564.75/x
  3. Step 3: Cross multiply
    39,469.13x = 54,465.78 × 21,564.75
  4. Step 4: Simplify right side
    39,469.13x = 1,174,540,929.26
  5. Step 5: Solve for x
    x = 1,174,540,929.26/39,469.13
  6. Step 6: Final answer
    x = 29,758.47

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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.