Home / 19,422.78-29,149.05-15,029.34

Finding the Fourth Proportional to 19,422.78, 29,149.05 and 15,029.34

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Solution

The fourth proportional to 19,422.78, 29,149.05 and 15,029.34 is: 22,555.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,422.78 : 29,149.05 = 15,029.34 : x
  2. Step 2: Convert to fraction form
    19,422.78/29,149.05 = 15,029.34/x
  3. Step 3: Cross multiply
    19,422.78x = 29,149.05 × 15,029.34
  4. Step 4: Simplify right side
    19,422.78x = 438,090,983.13
  5. Step 5: Solve for x
    x = 438,090,983.13/19,422.78
  6. Step 6: Final answer
    x = 22,555.52

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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.