Home / 38,687.88-53,397.24-21,924.12

Finding the Fourth Proportional to 38,687.88, 53,397.24 and 21,924.12

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Solution

The fourth proportional to 38,687.88, 53,397.24 and 21,924.12 is: 30,259.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,687.88 : 53,397.24 = 21,924.12 : x
  2. Step 2: Convert to fraction form
    38,687.88/53,397.24 = 21,924.12/x
  3. Step 3: Cross multiply
    38,687.88x = 53,397.24 × 21,924.12
  4. Step 4: Simplify right side
    38,687.88x = 1,170,687,497.43
  5. Step 5: Solve for x
    x = 1,170,687,497.43/38,687.88
  6. Step 6: Final answer
    x = 30,259.80

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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.