Home / 20,584.48-28,407.15-11,631.81

Finding the Fourth Proportional to 20,584.48, 28,407.15 and 11,631.81

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Solution

The fourth proportional to 20,584.48, 28,407.15 and 11,631.81 is: 16,052.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,584.48 : 28,407.15 = 11,631.81 : x
  2. Step 2: Convert to fraction form
    20,584.48/28,407.15 = 11,631.81/x
  3. Step 3: Cross multiply
    20,584.48x = 28,407.15 × 11,631.81
  4. Step 4: Simplify right side
    20,584.48x = 330,426,571.44
  5. Step 5: Solve for x
    x = 330,426,571.44/20,584.48
  6. Step 6: Final answer
    x = 16,052.22

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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.