Home / 20,664.09-30,998.16-7,513.38

Finding the Fourth Proportional to 20,664.09, 30,998.16 and 7,513.38

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Solution

The fourth proportional to 20,664.09, 30,998.16 and 7,513.38 is: 11,270.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,664.09 : 30,998.16 = 7,513.38 : x
  2. Step 2: Convert to fraction form
    20,664.09/30,998.16 = 7,513.38/x
  3. Step 3: Cross multiply
    20,664.09x = 30,998.16 × 7,513.38
  4. Step 4: Simplify right side
    20,664.09x = 232,900,955.38
  5. Step 5: Solve for x
    x = 232,900,955.38/20,664.09
  6. Step 6: Final answer
    x = 11,270.81

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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.