Home / 19,255.20-28,863.36-10,471.92

Finding the Fourth Proportional to 19,255.20, 28,863.36 and 10,471.92

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Solution

The fourth proportional to 19,255.20, 28,863.36 and 10,471.92 is: 15,697.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,255.20 : 28,863.36 = 10,471.92 : x
  2. Step 2: Convert to fraction form
    19,255.20/28,863.36 = 10,471.92/x
  3. Step 3: Cross multiply
    19,255.20x = 28,863.36 × 10,471.92
  4. Step 4: Simplify right side
    19,255.20x = 302,254,796.85
  5. Step 5: Solve for x
    x = 302,254,796.85/19,255.20
  6. Step 6: Final answer
    x = 15,697.31

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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.