Home / 20,410.88-30,543.36-15,998

Finding the Fourth Proportional to 20,410.88, 30,543.36 and 15,998

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Solution

The fourth proportional to 20,410.88, 30,543.36 and 15,998 is: 23,939.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,410.88 : 30,543.36 = 15,998 : x
  2. Step 2: Convert to fraction form
    20,410.88/30,543.36 = 15,998/x
  3. Step 3: Cross multiply
    20,410.88x = 30,543.36 × 15,998
  4. Step 4: Simplify right side
    20,410.88x = 488,632,673.28
  5. Step 5: Solve for x
    x = 488,632,673.28/20,410.88
  6. Step 6: Final answer
    x = 23,939.81

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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.