Home / 38,107.40-57,161.10-11,814.80

Finding the Fourth Proportional to 38,107.40, 57,161.10 and 11,814.80

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Solution

The fourth proportional to 38,107.40, 57,161.10 and 11,814.80 is: 17,722.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,107.40 : 57,161.10 = 11,814.80 : x
  2. Step 2: Convert to fraction form
    38,107.40/57,161.10 = 11,814.80/x
  3. Step 3: Cross multiply
    38,107.40x = 57,161.10 × 11,814.80
  4. Step 4: Simplify right side
    38,107.40x = 675,346,964.28
  5. Step 5: Solve for x
    x = 675,346,964.28/38,107.40
  6. Step 6: Final answer
    x = 17,722.20

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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.