Home / 19,127.76-28,708.94-8,042.64

Finding the Fourth Proportional to 19,127.76, 28,708.94 and 8,042.64

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Solution

The fourth proportional to 19,127.76, 28,708.94 and 8,042.64 is: 12,071.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,127.76 : 28,708.94 = 8,042.64 : x
  2. Step 2: Convert to fraction form
    19,127.76/28,708.94 = 8,042.64/x
  3. Step 3: Cross multiply
    19,127.76x = 28,708.94 × 8,042.64
  4. Step 4: Simplify right side
    19,127.76x = 230,895,669.20
  5. Step 5: Solve for x
    x = 230,895,669.20/19,127.76
  6. Step 6: Final answer
    x = 12,071.23

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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.