Home / 18,731.61-28,098.32-7,043.92

Finding the Fourth Proportional to 18,731.61, 28,098.32 and 7,043.92

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Solution

The fourth proportional to 18,731.61, 28,098.32 and 7,043.92 is: 10,566.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,731.61 : 28,098.32 = 7,043.92 : x
  2. Step 2: Convert to fraction form
    18,731.61/28,098.32 = 7,043.92/x
  3. Step 3: Cross multiply
    18,731.61x = 28,098.32 × 7,043.92
  4. Step 4: Simplify right side
    18,731.61x = 197,922,212.75
  5. Step 5: Solve for x
    x = 197,922,212.75/18,731.61
  6. Step 6: Final answer
    x = 10,566.21

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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.