Home / 19,260.27-28,865.80-12,691.07

Finding the Fourth Proportional to 19,260.27, 28,865.80 and 12,691.07

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Solution

The fourth proportional to 19,260.27, 28,865.80 and 12,691.07 is: 19,020.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,260.27 : 28,865.80 = 12,691.07 : x
  2. Step 2: Convert to fraction form
    19,260.27/28,865.80 = 12,691.07/x
  3. Step 3: Cross multiply
    19,260.27x = 28,865.80 × 12,691.07
  4. Step 4: Simplify right side
    19,260.27x = 366,337,888.41
  5. Step 5: Solve for x
    x = 366,337,888.41/19,260.27
  6. Step 6: Final answer
    x = 19,020.39

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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.