Home / 20,898.53-31,327.63-7,039.97

Finding the Fourth Proportional to 20,898.53, 31,327.63 and 7,039.97

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Solution

The fourth proportional to 20,898.53, 31,327.63 and 7,039.97 is: 10,553.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,898.53 : 31,327.63 = 7,039.97 : x
  2. Step 2: Convert to fraction form
    20,898.53/31,327.63 = 7,039.97/x
  3. Step 3: Cross multiply
    20,898.53x = 31,327.63 × 7,039.97
  4. Step 4: Simplify right side
    20,898.53x = 220,545,575.37
  5. Step 5: Solve for x
    x = 220,545,575.37/20,898.53
  6. Step 6: Final answer
    x = 10,553.16

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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.