Home / 20,567.43-28,383.08-11,136

Finding the Fourth Proportional to 20,567.43, 28,383.08 and 11,136

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Solution

The fourth proportional to 20,567.43, 28,383.08 and 11,136 is: 15,367.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,567.43 : 28,383.08 = 11,136 : x
  2. Step 2: Convert to fraction form
    20,567.43/28,383.08 = 11,136/x
  3. Step 3: Cross multiply
    20,567.43x = 28,383.08 × 11,136
  4. Step 4: Simplify right side
    20,567.43x = 316,073,923.20
  5. Step 5: Solve for x
    x = 316,073,923.20/20,567.43
  6. Step 6: Final answer
    x = 15,367.69

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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.