Home / 20,032.50-27,644.36-11,079.81

Finding the Fourth Proportional to 20,032.50, 27,644.36 and 11,079.81

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Solution

The fourth proportional to 20,032.50, 27,644.36 and 11,079.81 is: 15,289.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,032.50 : 27,644.36 = 11,079.81 : x
  2. Step 2: Convert to fraction form
    20,032.50/27,644.36 = 11,079.81/x
  3. Step 3: Cross multiply
    20,032.50x = 27,644.36 × 11,079.81
  4. Step 4: Simplify right side
    20,032.50x = 306,294,256.37
  5. Step 5: Solve for x
    x = 306,294,256.37/20,032.50
  6. Step 6: Final answer
    x = 15,289.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.