Home / 19,868.36-29,802.06-10,005

Finding the Fourth Proportional to 19,868.36, 29,802.06 and 10,005

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Solution

The fourth proportional to 19,868.36, 29,802.06 and 10,005 is: 15,007.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,868.36 : 29,802.06 = 10,005 : x
  2. Step 2: Convert to fraction form
    19,868.36/29,802.06 = 10,005/x
  3. Step 3: Cross multiply
    19,868.36x = 29,802.06 × 10,005
  4. Step 4: Simplify right side
    19,868.36x = 298,169,610.30
  5. Step 5: Solve for x
    x = 298,169,610.30/19,868.36
  6. Step 6: Final answer
    x = 15,007.26

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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.