Home / 28,911.71-43,367.57-9,190.27

Finding the Fourth Proportional to 28,911.71, 43,367.57 and 9,190.27

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Solution

The fourth proportional to 28,911.71, 43,367.57 and 9,190.27 is: 13,785.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,911.71 : 43,367.57 = 9,190.27 : x
  2. Step 2: Convert to fraction form
    28,911.71/43,367.57 = 9,190.27/x
  3. Step 3: Cross multiply
    28,911.71x = 43,367.57 × 9,190.27
  4. Step 4: Simplify right side
    28,911.71x = 398,559,677.54
  5. Step 5: Solve for x
    x = 398,559,677.54/28,911.71
  6. Step 6: Final answer
    x = 13,785.41

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Similar ratio
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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.