Home / 21,296.52-31,956.66-8,825.76

Finding the Fourth Proportional to 21,296.52, 31,956.66 and 8,825.76

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Solution

The fourth proportional to 21,296.52, 31,956.66 and 8,825.76 is: 13,243.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,296.52 : 31,956.66 = 8,825.76 : x
  2. Step 2: Convert to fraction form
    21,296.52/31,956.66 = 8,825.76/x
  3. Step 3: Cross multiply
    21,296.52x = 31,956.66 × 8,825.76
  4. Step 4: Simplify right side
    21,296.52x = 282,041,811.56
  5. Step 5: Solve for x
    x = 282,041,811.56/21,296.52
  6. Step 6: Final answer
    x = 13,243.56

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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.