Home / 39,763.78-54,874.13-22,768.28

Finding the Fourth Proportional to 39,763.78, 54,874.13 and 22,768.28

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Solution

The fourth proportional to 39,763.78, 54,874.13 and 22,768.28 is: 31,420.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,763.78 : 54,874.13 = 22,768.28 : x
  2. Step 2: Convert to fraction form
    39,763.78/54,874.13 = 22,768.28/x
  3. Step 3: Cross multiply
    39,763.78x = 54,874.13 × 22,768.28
  4. Step 4: Simplify right side
    39,763.78x = 1,249,389,556.60
  5. Step 5: Solve for x
    x = 1,249,389,556.60/39,763.78
  6. Step 6: Final answer
    x = 31,420.29

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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.