Home / 13,389.56-20,082.81-3,529.61

Finding the Fourth Proportional to 13,389.56, 20,082.81 and 3,529.61

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Solution

The fourth proportional to 13,389.56, 20,082.81 and 3,529.61 is: 5,294.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,389.56 : 20,082.81 = 3,529.61 : x
  2. Step 2: Convert to fraction form
    13,389.56/20,082.81 = 3,529.61/x
  3. Step 3: Cross multiply
    13,389.56x = 20,082.81 × 3,529.61
  4. Step 4: Simplify right side
    13,389.56x = 70,884,487.00
  5. Step 5: Solve for x
    x = 70,884,487.00/13,389.56
  6. Step 6: Final answer
    x = 5,294.01

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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.