Home / 19,743.72-29,619.10-11,943.24

Finding the Fourth Proportional to 19,743.72, 29,619.10 and 11,943.24

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Solution

The fourth proportional to 19,743.72, 29,619.10 and 11,943.24 is: 17,916.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,743.72 : 29,619.10 = 11,943.24 : x
  2. Step 2: Convert to fraction form
    19,743.72/29,619.10 = 11,943.24/x
  3. Step 3: Cross multiply
    19,743.72x = 29,619.10 × 11,943.24
  4. Step 4: Simplify right side
    19,743.72x = 353,748,019.88
  5. Step 5: Solve for x
    x = 353,748,019.88/19,743.72
  6. Step 6: Final answer
    x = 17,916.99

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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.