Home / 38,201.78-52,718.92-21,206.36

Finding the Fourth Proportional to 38,201.78, 52,718.92 and 21,206.36

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Solution

The fourth proportional to 38,201.78, 52,718.92 and 21,206.36 is: 29,265.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,201.78 : 52,718.92 = 21,206.36 : x
  2. Step 2: Convert to fraction form
    38,201.78/52,718.92 = 21,206.36/x
  3. Step 3: Cross multiply
    38,201.78x = 52,718.92 × 21,206.36
  4. Step 4: Simplify right side
    38,201.78x = 1,117,976,396.33
  5. Step 5: Solve for x
    x = 1,117,976,396.33/38,201.78
  6. Step 6: Final answer
    x = 29,265.03

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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.