Home / 39,455.01-54,447.03-21,550.08

Finding the Fourth Proportional to 39,455.01, 54,447.03 and 21,550.08

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Solution

The fourth proportional to 39,455.01, 54,447.03 and 21,550.08 is: 29,738.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,455.01 : 54,447.03 = 21,550.08 : x
  2. Step 2: Convert to fraction form
    39,455.01/54,447.03 = 21,550.08/x
  3. Step 3: Cross multiply
    39,455.01x = 54,447.03 × 21,550.08
  4. Step 4: Simplify right side
    39,455.01x = 1,173,337,906.14
  5. Step 5: Solve for x
    x = 1,173,337,906.14/39,455.01
  6. Step 6: Final answer
    x = 29,738.63

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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.