Home / 28,906.20-43,359.30-17,825.40

Finding the Fourth Proportional to 28,906.20, 43,359.30 and 17,825.40

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Solution

The fourth proportional to 28,906.20, 43,359.30 and 17,825.40 is: 26,738.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,906.20 : 43,359.30 = 17,825.40 : x
  2. Step 2: Convert to fraction form
    28,906.20/43,359.30 = 17,825.40/x
  3. Step 3: Cross multiply
    28,906.20x = 43,359.30 × 17,825.40
  4. Step 4: Simplify right side
    28,906.20x = 772,896,866.22
  5. Step 5: Solve for x
    x = 772,896,866.22/28,906.20
  6. Step 6: Final answer
    x = 26,738.10

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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.