Home / 21,276.52-31,914.42-8,803.24

Finding the Fourth Proportional to 21,276.52, 31,914.42 and 8,803.24

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Solution

The fourth proportional to 21,276.52, 31,914.42 and 8,803.24 is: 13,204.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276.52 : 31,914.42 = 8,803.24 : x
  2. Step 2: Convert to fraction form
    21,276.52/31,914.42 = 8,803.24/x
  3. Step 3: Cross multiply
    21,276.52x = 31,914.42 × 8,803.24
  4. Step 4: Simplify right side
    21,276.52x = 280,950,298.72
  5. Step 5: Solve for x
    x = 280,950,298.72/21,276.52
  6. Step 6: Final answer
    x = 13,204.71

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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.