Home / 13,720.84-20,581.26-3,332.52

Finding the Fourth Proportional to 13,720.84, 20,581.26 and 3,332.52

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Solution

The fourth proportional to 13,720.84, 20,581.26 and 3,332.52 is: 4,998.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,720.84 : 20,581.26 = 3,332.52 : x
  2. Step 2: Convert to fraction form
    13,720.84/20,581.26 = 3,332.52/x
  3. Step 3: Cross multiply
    13,720.84x = 20,581.26 × 3,332.52
  4. Step 4: Simplify right side
    13,720.84x = 68,587,460.58
  5. Step 5: Solve for x
    x = 68,587,460.58/13,720.84
  6. Step 6: Final answer
    x = 4,998.78

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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.