Home / 28,906.60-43,369.62-11,378.20

Finding the Fourth Proportional to 28,906.60, 43,369.62 and 11,378.20

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Solution

The fourth proportional to 28,906.60, 43,369.62 and 11,378.20 is: 17,071.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,906.60 : 43,369.62 = 11,378.20 : x
  2. Step 2: Convert to fraction form
    28,906.60/43,369.62 = 11,378.20/x
  3. Step 3: Cross multiply
    28,906.60x = 43,369.62 × 11,378.20
  4. Step 4: Simplify right side
    28,906.60x = 493,468,210.28
  5. Step 5: Solve for x
    x = 493,468,210.28/28,906.60
  6. Step 6: Final answer
    x = 17,071.13

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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.