Home / 20,578.08-28,452.96-19,632

Finding the Fourth Proportional to 20,578.08, 28,452.96 and 19,632

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Solution

The fourth proportional to 20,578.08, 28,452.96 and 19,632 is: 27,144.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,578.08 : 28,452.96 = 19,632 : x
  2. Step 2: Convert to fraction form
    20,578.08/28,452.96 = 19,632/x
  3. Step 3: Cross multiply
    20,578.08x = 28,452.96 × 19,632
  4. Step 4: Simplify right side
    20,578.08x = 558,588,510.72
  5. Step 5: Solve for x
    x = 558,588,510.72/20,578.08
  6. Step 6: Final answer
    x = 27,144.83

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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.