Home / 13,970.43-20,955.46-3,440.58

Finding the Fourth Proportional to 13,970.43, 20,955.46 and 3,440.58

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Solution

The fourth proportional to 13,970.43, 20,955.46 and 3,440.58 is: 5,160.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,970.43 : 20,955.46 = 3,440.58 : x
  2. Step 2: Convert to fraction form
    13,970.43/20,955.46 = 3,440.58/x
  3. Step 3: Cross multiply
    13,970.43x = 20,955.46 × 3,440.58
  4. Step 4: Simplify right side
    13,970.43x = 72,098,814.59
  5. Step 5: Solve for x
    x = 72,098,814.59/13,970.43
  6. Step 6: Final answer
    x = 5,160.82

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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.