Home / 38,107.81-57,164.68-11,451.72

Finding the Fourth Proportional to 38,107.81, 57,164.68 and 11,451.72

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Solution

The fourth proportional to 38,107.81, 57,164.68 and 11,451.72 is: 17,178.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,107.81 : 57,164.68 = 11,451.72 : x
  2. Step 2: Convert to fraction form
    38,107.81/57,164.68 = 11,451.72/x
  3. Step 3: Cross multiply
    38,107.81x = 57,164.68 × 11,451.72
  4. Step 4: Simplify right side
    38,107.81x = 654,633,909.25
  5. Step 5: Solve for x
    x = 654,633,909.25/38,107.81
  6. Step 6: Final answer
    x = 17,178.47

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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.