Home / 38,728.22-53,448.66-21,732.48

Finding the Fourth Proportional to 38,728.22, 53,448.66 and 21,732.48

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Solution

The fourth proportional to 38,728.22, 53,448.66 and 21,732.48 is: 29,992.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,728.22 : 53,448.66 = 21,732.48 : x
  2. Step 2: Convert to fraction form
    38,728.22/53,448.66 = 21,732.48/x
  3. Step 3: Cross multiply
    38,728.22x = 53,448.66 × 21,732.48
  4. Step 4: Simplify right side
    38,728.22x = 1,161,571,934.48
  5. Step 5: Solve for x
    x = 1,161,571,934.48/38,728.22
  6. Step 6: Final answer
    x = 29,992.91

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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.