Home / 38,239.71-52,771.05-21,243.75

Finding the Fourth Proportional to 38,239.71, 52,771.05 and 21,243.75

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Solution

The fourth proportional to 38,239.71, 52,771.05 and 21,243.75 is: 29,316.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,239.71 : 52,771.05 = 21,243.75 : x
  2. Step 2: Convert to fraction form
    38,239.71/52,771.05 = 21,243.75/x
  3. Step 3: Cross multiply
    38,239.71x = 52,771.05 × 21,243.75
  4. Step 4: Simplify right side
    38,239.71x = 1,121,054,993.44
  5. Step 5: Solve for x
    x = 1,121,054,993.44/38,239.71
  6. Step 6: Final answer
    x = 29,316.51

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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.