Home / 13,549.59-20,322.33-3,689.64

Finding the Fourth Proportional to 13,549.59, 20,322.33 and 3,689.64

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Solution

The fourth proportional to 13,549.59, 20,322.33 and 3,689.64 is: 5,533.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,549.59 : 20,322.33 = 3,689.64 : x
  2. Step 2: Convert to fraction form
    13,549.59/20,322.33 = 3,689.64/x
  3. Step 3: Cross multiply
    13,549.59x = 20,322.33 × 3,689.64
  4. Step 4: Simplify right side
    13,549.59x = 74,982,157.87
  5. Step 5: Solve for x
    x = 74,982,157.87/13,549.59
  6. Step 6: Final answer
    x = 5,533.91

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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.