Home / 39,791.99-54,911.24-21,885.84

Finding the Fourth Proportional to 39,791.99, 54,911.24 and 21,885.84

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Solution

The fourth proportional to 39,791.99, 54,911.24 and 21,885.84 is: 30,201.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,791.99 : 54,911.24 = 21,885.84 : x
  2. Step 2: Convert to fraction form
    39,791.99/54,911.24 = 21,885.84/x
  3. Step 3: Cross multiply
    39,791.99x = 54,911.24 × 21,885.84
  4. Step 4: Simplify right side
    39,791.99x = 1,201,778,612.84
  5. Step 5: Solve for x
    x = 1,201,778,612.84/39,791.99
  6. Step 6: Final answer
    x = 30,201.52

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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.