Home / 38,921.40-53,704.26-21,924.36

Finding the Fourth Proportional to 38,921.40, 53,704.26 and 21,924.36

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Solution

The fourth proportional to 38,921.40, 53,704.26 and 21,924.36 is: 30,251.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,921.40 : 53,704.26 = 21,924.36 : x
  2. Step 2: Convert to fraction form
    38,921.40/53,704.26 = 21,924.36/x
  3. Step 3: Cross multiply
    38,921.40x = 53,704.26 × 21,924.36
  4. Step 4: Simplify right side
    38,921.40x = 1,177,431,529.77
  5. Step 5: Solve for x
    x = 1,177,431,529.77/38,921.40
  6. Step 6: Final answer
    x = 30,251.52

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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.