Home / 19,820.75-29,731.13-5,029.75

Finding the Fourth Proportional to 19,820.75, 29,731.13 and 5,029.75

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Solution

The fourth proportional to 19,820.75, 29,731.13 and 5,029.75 is: 7,544.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,820.75 : 29,731.13 = 5,029.75 : x
  2. Step 2: Convert to fraction form
    19,820.75/29,731.13 = 5,029.75/x
  3. Step 3: Cross multiply
    19,820.75x = 29,731.13 × 5,029.75
  4. Step 4: Simplify right side
    19,820.75x = 149,539,977.31
  5. Step 5: Solve for x
    x = 149,539,977.31/19,820.75
  6. Step 6: Final answer
    x = 7,544.62

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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.