Home / 13,792.04-20,688.68-3,932

Finding the Fourth Proportional to 13,792.04, 20,688.68 and 3,932

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Solution

The fourth proportional to 13,792.04, 20,688.68 and 3,932 is: 5,898.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,792.04 : 20,688.68 = 3,932 : x
  2. Step 2: Convert to fraction form
    13,792.04/20,688.68 = 3,932/x
  3. Step 3: Cross multiply
    13,792.04x = 20,688.68 × 3,932
  4. Step 4: Simplify right side
    13,792.04x = 81,347,889.76
  5. Step 5: Solve for x
    x = 81,347,889.76/13,792.04
  6. Step 6: Final answer
    x = 5,898.18

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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.