Home / 21,104.59-31,663.23-6,313.99

Finding the Fourth Proportional to 21,104.59, 31,663.23 and 6,313.99

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Solution

The fourth proportional to 21,104.59, 31,663.23 and 6,313.99 is: 9,472.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,104.59 : 31,663.23 = 6,313.99 : x
  2. Step 2: Convert to fraction form
    21,104.59/31,663.23 = 6,313.99/x
  3. Step 3: Cross multiply
    21,104.59x = 31,663.23 × 6,313.99
  4. Step 4: Simplify right side
    21,104.59x = 199,921,317.59
  5. Step 5: Solve for x
    x = 199,921,317.59/21,104.59
  6. Step 6: Final answer
    x = 9,472.88

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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.