Home / 19,933.90-29,919.38-10,080.25

Finding the Fourth Proportional to 19,933.90, 29,919.38 and 10,080.25

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Solution

The fourth proportional to 19,933.90, 29,919.38 and 10,080.25 is: 15,129.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,933.90 : 29,919.38 = 10,080.25 : x
  2. Step 2: Convert to fraction form
    19,933.90/29,919.38 = 10,080.25/x
  3. Step 3: Cross multiply
    19,933.90x = 29,919.38 × 10,080.25
  4. Step 4: Simplify right side
    19,933.90x = 301,594,705.05
  5. Step 5: Solve for x
    x = 301,594,705.05/19,933.90
  6. Step 6: Final answer
    x = 15,129.74

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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.