Home / 39,835.11-54,974.43-21,929.92

Finding the Fourth Proportional to 39,835.11, 54,974.43 and 21,929.92

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Solution

The fourth proportional to 39,835.11, 54,974.43 and 21,929.92 is: 30,264.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,835.11 : 54,974.43 = 21,929.92 : x
  2. Step 2: Convert to fraction form
    39,835.11/54,974.43 = 21,929.92/x
  3. Step 3: Cross multiply
    39,835.11x = 54,974.43 × 21,929.92
  4. Step 4: Simplify right side
    39,835.11x = 1,205,584,851.95
  5. Step 5: Solve for x
    x = 1,205,584,851.95/39,835.11
  6. Step 6: Final answer
    x = 30,264.38

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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.