Home / 34,139.62-51,100.26-18,305.20

Finding the Fourth Proportional to 34,139.62, 51,100.26 and 18,305.20

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Solution

The fourth proportional to 34,139.62, 51,100.26 and 18,305.20 is: 27,399.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,139.62 : 51,100.26 = 18,305.20 : x
  2. Step 2: Convert to fraction form
    34,139.62/51,100.26 = 18,305.20/x
  3. Step 3: Cross multiply
    34,139.62x = 51,100.26 × 18,305.20
  4. Step 4: Simplify right side
    34,139.62x = 935,400,479.35
  5. Step 5: Solve for x
    x = 935,400,479.35/34,139.62
  6. Step 6: Final answer
    x = 27,399.26

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1.5x scale

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.