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Finding the Fourth Proportional to 20,877, 31,332.93 and 19,563.27

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Solution

The fourth proportional to 20,877, 31,332.93 and 19,563.27 is: 29,361.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,877 : 31,332.93 = 19,563.27 : x
  2. Step 2: Convert to fraction form
    20,877/31,332.93 = 19,563.27/x
  3. Step 3: Cross multiply
    20,877x = 31,332.93 × 19,563.27
  4. Step 4: Simplify right side
    20,877x = 612,974,569.48
  5. Step 5: Solve for x
    x = 612,974,569.48/20,877
  6. Step 6: Final answer
    x = 29,361.24

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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.