Home / 19,720.43-29,563.01-7,237.56

Finding the Fourth Proportional to 19,720.43, 29,563.01 and 7,237.56

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Solution

The fourth proportional to 19,720.43, 29,563.01 and 7,237.56 is: 10,849.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720.43 : 29,563.01 = 7,237.56 : x
  2. Step 2: Convert to fraction form
    19,720.43/29,563.01 = 7,237.56/x
  3. Step 3: Cross multiply
    19,720.43x = 29,563.01 × 7,237.56
  4. Step 4: Simplify right side
    19,720.43x = 213,964,022.47
  5. Step 5: Solve for x
    x = 213,964,022.47/19,720.43
  6. Step 6: Final answer
    x = 10,849.87

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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.