Home / 19,290.62-28,889.20-13,350.86

Finding the Fourth Proportional to 19,290.62, 28,889.20 and 13,350.86

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Solution

The fourth proportional to 19,290.62, 28,889.20 and 13,350.86 is: 19,993.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,290.62 : 28,889.20 = 13,350.86 : x
  2. Step 2: Convert to fraction form
    19,290.62/28,889.20 = 13,350.86/x
  3. Step 3: Cross multiply
    19,290.62x = 28,889.20 × 13,350.86
  4. Step 4: Simplify right side
    19,290.62x = 385,695,664.71
  5. Step 5: Solve for x
    x = 385,695,664.71/19,290.62
  6. Step 6: Final answer
    x = 19,993.95

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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.