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Finding the Fourth Proportional to 20,347.73, 30,568.49 and 19,506.99

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Solution

The fourth proportional to 20,347.73, 30,568.49 and 19,506.99 is: 29,305.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,347.73 : 30,568.49 = 19,506.99 : x
  2. Step 2: Convert to fraction form
    20,347.73/30,568.49 = 19,506.99/x
  3. Step 3: Cross multiply
    20,347.73x = 30,568.49 × 19,506.99
  4. Step 4: Simplify right side
    20,347.73x = 596,299,253.13
  5. Step 5: Solve for x
    x = 596,299,253.13/20,347.73
  6. Step 6: Final answer
    x = 29,305.45

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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.