Home / 39,469.39-54,467.12-21,564.01

Finding the Fourth Proportional to 39,469.39, 54,467.12 and 21,564.01

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Solution

The fourth proportional to 39,469.39, 54,467.12 and 21,564.01 is: 29,757.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,469.39 : 54,467.12 = 21,564.01 : x
  2. Step 2: Convert to fraction form
    39,469.39/54,467.12 = 21,564.01/x
  3. Step 3: Cross multiply
    39,469.39x = 54,467.12 × 21,564.01
  4. Step 4: Simplify right side
    39,469.39x = 1,174,529,535.43
  5. Step 5: Solve for x
    x = 1,174,529,535.43/39,469.39
  6. Step 6: Final answer
    x = 29,757.99

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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.