Home / 19,400.68-29,101.64-5,361.76

Finding the Fourth Proportional to 19,400.68, 29,101.64 and 5,361.76

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Solution

The fourth proportional to 19,400.68, 29,101.64 and 5,361.76 is: 8,042.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,400.68 : 29,101.64 = 5,361.76 : x
  2. Step 2: Convert to fraction form
    19,400.68/29,101.64 = 5,361.76/x
  3. Step 3: Cross multiply
    19,400.68x = 29,101.64 × 5,361.76
  4. Step 4: Simplify right side
    19,400.68x = 156,036,009.29
  5. Step 5: Solve for x
    x = 156,036,009.29/19,400.68
  6. Step 6: Final answer
    x = 8,042.81

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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.