Home / 38,128.77-57,209.49-18,422.01

Finding the Fourth Proportional to 38,128.77, 57,209.49 and 18,422.01

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Solution

The fourth proportional to 38,128.77, 57,209.49 and 18,422.01 is: 27,640.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,128.77 : 57,209.49 = 18,422.01 : x
  2. Step 2: Convert to fraction form
    38,128.77/57,209.49 = 18,422.01/x
  3. Step 3: Cross multiply
    38,128.77x = 57,209.49 × 18,422.01
  4. Step 4: Simplify right side
    38,128.77x = 1,053,913,796.87
  5. Step 5: Solve for x
    x = 1,053,913,796.87/38,128.77
  6. Step 6: Final answer
    x = 27,640.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.