Home / 19,400.31-29,099.89-5,361.21

Finding the Fourth Proportional to 19,400.31, 29,099.89 and 5,361.21

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Solution

The fourth proportional to 19,400.31, 29,099.89 and 5,361.21 is: 8,041.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,400.31 : 29,099.89 = 5,361.21 : x
  2. Step 2: Convert to fraction form
    19,400.31/29,099.89 = 5,361.21/x
  3. Step 3: Cross multiply
    19,400.31x = 29,099.89 × 5,361.21
  4. Step 4: Simplify right side
    19,400.31x = 156,010,621.27
  5. Step 5: Solve for x
    x = 156,010,621.27/19,400.31
  6. Step 6: Final answer
    x = 8,041.66

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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.