Home / 13,549.10-20,322.02-3,689.15

Finding the Fourth Proportional to 13,549.10, 20,322.02 and 3,689.15

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Solution

The fourth proportional to 13,549.10, 20,322.02 and 3,689.15 is: 5,533.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,549.10 : 20,322.02 = 3,689.15 : x
  2. Step 2: Convert to fraction form
    13,549.10/20,322.02 = 3,689.15/x
  3. Step 3: Cross multiply
    13,549.10x = 20,322.02 × 3,689.15
  4. Step 4: Simplify right side
    13,549.10x = 74,970,887.70
  5. Step 5: Solve for x
    x = 74,970,887.70/13,549.10
  6. Step 6: Final answer
    x = 5,533.28

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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.