Home / 19,891.72-29,851.14-10,531.36

Finding the Fourth Proportional to 19,891.72, 29,851.14 and 10,531.36

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Solution

The fourth proportional to 19,891.72, 29,851.14 and 10,531.36 is: 15,804.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,891.72 : 29,851.14 = 10,531.36 : x
  2. Step 2: Convert to fraction form
    19,891.72/29,851.14 = 10,531.36/x
  3. Step 3: Cross multiply
    19,891.72x = 29,851.14 × 10,531.36
  4. Step 4: Simplify right side
    19,891.72x = 314,373,101.75
  5. Step 5: Solve for x
    x = 314,373,101.75/19,891.72
  6. Step 6: Final answer
    x = 15,804.22

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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.