Home / 19,581.33-29,401.16-7,917.33

Finding the Fourth Proportional to 19,581.33, 29,401.16 and 7,917.33

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Solution

The fourth proportional to 19,581.33, 29,401.16 and 7,917.33 is: 11,887.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,581.33 : 29,401.16 = 7,917.33 : x
  2. Step 2: Convert to fraction form
    19,581.33/29,401.16 = 7,917.33/x
  3. Step 3: Cross multiply
    19,581.33x = 29,401.16 × 7,917.33
  4. Step 4: Simplify right side
    19,581.33x = 232,778,686.10
  5. Step 5: Solve for x
    x = 232,778,686.10/19,581.33
  6. Step 6: Final answer
    x = 11,887.79

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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.