Home / 19,293.86-28,943.10-6,811.31

Finding the Fourth Proportional to 19,293.86, 28,943.10 and 6,811.31

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Solution

The fourth proportional to 19,293.86, 28,943.10 and 6,811.31 is: 10,217.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,293.86 : 28,943.10 = 6,811.31 : x
  2. Step 2: Convert to fraction form
    19,293.86/28,943.10 = 6,811.31/x
  3. Step 3: Cross multiply
    19,293.86x = 28,943.10 × 6,811.31
  4. Step 4: Simplify right side
    19,293.86x = 197,140,426.46
  5. Step 5: Solve for x
    x = 197,140,426.46/19,293.86
  6. Step 6: Final answer
    x = 10,217.78

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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.