Home / 19,286.15-28,920.71-6,802.49

Finding the Fourth Proportional to 19,286.15, 28,920.71 and 6,802.49

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Solution

The fourth proportional to 19,286.15, 28,920.71 and 6,802.49 is: 10,200.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,286.15 : 28,920.71 = 6,802.49 : x
  2. Step 2: Convert to fraction form
    19,286.15/28,920.71 = 6,802.49/x
  3. Step 3: Cross multiply
    19,286.15x = 28,920.71 × 6,802.49
  4. Step 4: Simplify right side
    19,286.15x = 196,732,929.88
  5. Step 5: Solve for x
    x = 196,732,929.88/19,286.15
  6. Step 6: Final answer
    x = 10,200.74

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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.