Home / 13,825.53-20,738.28-3,437.28

Finding the Fourth Proportional to 13,825.53, 20,738.28 and 3,437.28

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Solution

The fourth proportional to 13,825.53, 20,738.28 and 3,437.28 is: 5,155.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,825.53 : 20,738.28 = 3,437.28 : x
  2. Step 2: Convert to fraction form
    13,825.53/20,738.28 = 3,437.28/x
  3. Step 3: Cross multiply
    13,825.53x = 20,738.28 × 3,437.28
  4. Step 4: Simplify right side
    13,825.53x = 71,283,275.08
  5. Step 5: Solve for x
    x = 71,283,275.08/13,825.53
  6. Step 6: Final answer
    x = 5,155.92

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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.