Home / 13,475.24-20,213.40-3,615.40

Finding the Fourth Proportional to 13,475.24, 20,213.40 and 3,615.40

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Solution

The fourth proportional to 13,475.24, 20,213.40 and 3,615.40 is: 5,423.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,475.24 : 20,213.40 = 3,615.40 : x
  2. Step 2: Convert to fraction form
    13,475.24/20,213.40 = 3,615.40/x
  3. Step 3: Cross multiply
    13,475.24x = 20,213.40 × 3,615.40
  4. Step 4: Simplify right side
    13,475.24x = 73,079,526.36
  5. Step 5: Solve for x
    x = 73,079,526.36/13,475.24
  6. Step 6: Final answer
    x = 5,423.24

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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.