Home / 19,361.69-29,039.05-5,130.26

Finding the Fourth Proportional to 19,361.69, 29,039.05 and 5,130.26

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Solution

The fourth proportional to 19,361.69, 29,039.05 and 5,130.26 is: 7,694.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,361.69 : 29,039.05 = 5,130.26 : x
  2. Step 2: Convert to fraction form
    19,361.69/29,039.05 = 5,130.26/x
  3. Step 3: Cross multiply
    19,361.69x = 29,039.05 × 5,130.26
  4. Step 4: Simplify right side
    19,361.69x = 148,977,876.65
  5. Step 5: Solve for x
    x = 148,977,876.65/19,361.69
  6. Step 6: Final answer
    x = 7,694.47

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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.