Home / 13,471.24-20,207.40-3,611.40

Finding the Fourth Proportional to 13,471.24, 20,207.40 and 3,611.40

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Solution

The fourth proportional to 13,471.24, 20,207.40 and 3,611.40 is: 5,417.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,471.24 : 20,207.40 = 3,611.40 : x
  2. Step 2: Convert to fraction form
    13,471.24/20,207.40 = 3,611.40/x
  3. Step 3: Cross multiply
    13,471.24x = 20,207.40 × 3,611.40
  4. Step 4: Simplify right side
    13,471.24x = 72,977,004.36
  5. Step 5: Solve for x
    x = 72,977,004.36/13,471.24
  6. Step 6: Final answer
    x = 5,417.24

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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.