Home / 13,389.29-20,084.91-3,528.50

Finding the Fourth Proportional to 13,389.29, 20,084.91 and 3,528.50

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Solution

The fourth proportional to 13,389.29, 20,084.91 and 3,528.50 is: 5,293.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,389.29 : 20,084.91 = 3,528.50 : x
  2. Step 2: Convert to fraction form
    13,389.29/20,084.91 = 3,528.50/x
  3. Step 3: Cross multiply
    13,389.29x = 20,084.91 × 3,528.50
  4. Step 4: Simplify right side
    13,389.29x = 70,869,604.94
  5. Step 5: Solve for x
    x = 70,869,604.94/13,389.29
  6. Step 6: Final answer
    x = 5,293.01

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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.