Home / 19,943.36-29,918.60-6,617.16

Finding the Fourth Proportional to 19,943.36, 29,918.60 and 6,617.16

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Solution

The fourth proportional to 19,943.36, 29,918.60 and 6,617.16 is: 9,926.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,943.36 : 29,918.60 = 6,617.16 : x
  2. Step 2: Convert to fraction form
    19,943.36/29,918.60 = 6,617.16/x
  3. Step 3: Cross multiply
    19,943.36x = 29,918.60 × 6,617.16
  4. Step 4: Simplify right side
    19,943.36x = 197,976,020.86
  5. Step 5: Solve for x
    x = 197,976,020.86/19,943.36
  6. Step 6: Final answer
    x = 9,926.91

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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.