Home / 19,121.25-28,672.02-8,582.24

Finding the Fourth Proportional to 19,121.25, 28,672.02 and 8,582.24

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Solution

The fourth proportional to 19,121.25, 28,672.02 and 8,582.24 is: 12,868.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,121.25 : 28,672.02 = 8,582.24 : x
  2. Step 2: Convert to fraction form
    19,121.25/28,672.02 = 8,582.24/x
  3. Step 3: Cross multiply
    19,121.25x = 28,672.02 × 8,582.24
  4. Step 4: Simplify right side
    19,121.25x = 246,070,218.46
  5. Step 5: Solve for x
    x = 246,070,218.46/19,121.25
  6. Step 6: Final answer
    x = 12,868.94

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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.