Home / 13,591.30-20,388.98-4,825.48

Finding the Fourth Proportional to 13,591.30, 20,388.98 and 4,825.48

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Solution

The fourth proportional to 13,591.30, 20,388.98 and 4,825.48 is: 7,238.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,591.30 : 20,388.98 = 4,825.48 : x
  2. Step 2: Convert to fraction form
    13,591.30/20,388.98 = 4,825.48/x
  3. Step 3: Cross multiply
    13,591.30x = 20,388.98 × 4,825.48
  4. Step 4: Simplify right side
    13,591.30x = 98,386,615.21
  5. Step 5: Solve for x
    x = 98,386,615.21/13,591.30
  6. Step 6: Final answer
    x = 7,238.94

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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.