Home / 19,375.20-29,062.80-8,845.20

Finding the Fourth Proportional to 19,375.20, 29,062.80 and 8,845.20

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Solution

The fourth proportional to 19,375.20, 29,062.80 and 8,845.20 is: 13,267.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,375.20 : 29,062.80 = 8,845.20 : x
  2. Step 2: Convert to fraction form
    19,375.20/29,062.80 = 8,845.20/x
  3. Step 3: Cross multiply
    19,375.20x = 29,062.80 × 8,845.20
  4. Step 4: Simplify right side
    19,375.20x = 257,066,278.56
  5. Step 5: Solve for x
    x = 257,066,278.56/19,375.20
  6. Step 6: Final answer
    x = 13,267.80

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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.