Home / 13,447.40-20,171.10-3,588.20

Finding the Fourth Proportional to 13,447.40, 20,171.10 and 3,588.20

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Solution

The fourth proportional to 13,447.40, 20,171.10 and 3,588.20 is: 5,382.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,447.40 : 20,171.10 = 3,588.20 : x
  2. Step 2: Convert to fraction form
    13,447.40/20,171.10 = 3,588.20/x
  3. Step 3: Cross multiply
    13,447.40x = 20,171.10 × 3,588.20
  4. Step 4: Simplify right side
    13,447.40x = 72,377,941.02
  5. Step 5: Solve for x
    x = 72,377,941.02/13,447.40
  6. Step 6: Final answer
    x = 5,382.30

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1.5x scale

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.