Home / 28,730.75-43,007.02-15,550.43

Finding the Fourth Proportional to 28,730.75, 43,007.02 and 15,550.43

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Solution

The fourth proportional to 28,730.75, 43,007.02 and 15,550.43 is: 23,277.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,730.75 : 43,007.02 = 15,550.43 : x
  2. Step 2: Convert to fraction form
    28,730.75/43,007.02 = 15,550.43/x
  3. Step 3: Cross multiply
    28,730.75x = 43,007.02 × 15,550.43
  4. Step 4: Simplify right side
    28,730.75x = 668,777,400.11
  5. Step 5: Solve for x
    x = 668,777,400.11/28,730.75
  6. Step 6: Final answer
    x = 23,277.41

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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.