Home / 13,891.20-20,837.88-4,030.62

Finding the Fourth Proportional to 13,891.20, 20,837.88 and 4,030.62

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Solution

The fourth proportional to 13,891.20, 20,837.88 and 4,030.62 is: 6,046.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891.20 : 20,837.88 = 4,030.62 : x
  2. Step 2: Convert to fraction form
    13,891.20/20,837.88 = 4,030.62/x
  3. Step 3: Cross multiply
    13,891.20x = 20,837.88 × 4,030.62
  4. Step 4: Simplify right side
    13,891.20x = 83,989,575.89
  5. Step 5: Solve for x
    x = 83,989,575.89/13,891.20
  6. Step 6: Final answer
    x = 6,046.24

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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.