Home / 38,906.30-53,689.99-21,910.48

Finding the Fourth Proportional to 38,906.30, 53,689.99 and 21,910.48

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Solution

The fourth proportional to 38,906.30, 53,689.99 and 21,910.48 is: 30,236.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,906.30 : 53,689.99 = 21,910.48 : x
  2. Step 2: Convert to fraction form
    38,906.30/53,689.99 = 21,910.48/x
  3. Step 3: Cross multiply
    38,906.30x = 53,689.99 × 21,910.48
  4. Step 4: Simplify right side
    38,906.30x = 1,176,373,452.10
  5. Step 5: Solve for x
    x = 1,176,373,452.10/38,906.30
  6. Step 6: Final answer
    x = 30,236.07

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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.