Home / 19,889.47-29,834.25-9,351.78

Finding the Fourth Proportional to 19,889.47, 29,834.25 and 9,351.78

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Solution

The fourth proportional to 19,889.47, 29,834.25 and 9,351.78 is: 14,027.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,889.47 : 29,834.25 = 9,351.78 : x
  2. Step 2: Convert to fraction form
    19,889.47/29,834.25 = 9,351.78/x
  3. Step 3: Cross multiply
    19,889.47x = 29,834.25 × 9,351.78
  4. Step 4: Simplify right side
    19,889.47x = 279,003,342.47
  5. Step 5: Solve for x
    x = 279,003,342.47/19,889.47
  6. Step 6: Final answer
    x = 14,027.69

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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.