Home / 13,742.28-20,614.77-3,881.63

Finding the Fourth Proportional to 13,742.28, 20,614.77 and 3,881.63

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Solution

The fourth proportional to 13,742.28, 20,614.77 and 3,881.63 is: 5,822.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,742.28 : 20,614.77 = 3,881.63 : x
  2. Step 2: Convert to fraction form
    13,742.28/20,614.77 = 3,881.63/x
  3. Step 3: Cross multiply
    13,742.28x = 20,614.77 × 3,881.63
  4. Step 4: Simplify right side
    13,742.28x = 80,018,961.21
  5. Step 5: Solve for x
    x = 80,018,961.21/13,742.28
  6. Step 6: Final answer
    x = 5,822.83

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1.5x scale

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.