Home / 19,429.44-29,144.16-7,742.76

Finding the Fourth Proportional to 19,429.44, 29,144.16 and 7,742.76

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Solution

The fourth proportional to 19,429.44, 29,144.16 and 7,742.76 is: 11,614.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,429.44 : 29,144.16 = 7,742.76 : x
  2. Step 2: Convert to fraction form
    19,429.44/29,144.16 = 7,742.76/x
  3. Step 3: Cross multiply
    19,429.44x = 29,144.16 × 7,742.76
  4. Step 4: Simplify right side
    19,429.44x = 225,656,236.28
  5. Step 5: Solve for x
    x = 225,656,236.28/19,429.44
  6. Step 6: Final answer
    x = 11,614.14

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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.