Home / 19,192.68-28,764.77-10,285.88

Finding the Fourth Proportional to 19,192.68, 28,764.77 and 10,285.88

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Solution

The fourth proportional to 19,192.68, 28,764.77 and 10,285.88 is: 15,415.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,192.68 : 28,764.77 = 10,285.88 : x
  2. Step 2: Convert to fraction form
    19,192.68/28,764.77 = 10,285.88/x
  3. Step 3: Cross multiply
    19,192.68x = 28,764.77 × 10,285.88
  4. Step 4: Simplify right side
    19,192.68x = 295,870,777.19
  5. Step 5: Solve for x
    x = 295,870,777.19/19,192.68
  6. Step 6: Final answer
    x = 15,415.81

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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.