Home / 13,970.07-20,955.65-3,581.82

Finding the Fourth Proportional to 13,970.07, 20,955.65 and 3,581.82

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Solution

The fourth proportional to 13,970.07, 20,955.65 and 3,581.82 is: 5,372.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,970.07 : 20,955.65 = 3,581.82 : x
  2. Step 2: Convert to fraction form
    13,970.07/20,955.65 = 3,581.82/x
  3. Step 3: Cross multiply
    13,970.07x = 20,955.65 × 3,581.82
  4. Step 4: Simplify right side
    13,970.07x = 75,059,348.37
  5. Step 5: Solve for x
    x = 75,059,348.37/13,970.07
  6. Step 6: Final answer
    x = 5,372.87

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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.