Home / 19,761.11-29,643.22-5,721.36

Finding the Fourth Proportional to 19,761.11, 29,643.22 and 5,721.36

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Solution

The fourth proportional to 19,761.11, 29,643.22 and 5,721.36 is: 8,582.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,761.11 : 29,643.22 = 5,721.36 : x
  2. Step 2: Convert to fraction form
    19,761.11/29,643.22 = 5,721.36/x
  3. Step 3: Cross multiply
    19,761.11x = 29,643.22 × 5,721.36
  4. Step 4: Simplify right side
    19,761.11x = 169,599,407.71
  5. Step 5: Solve for x
    x = 169,599,407.71/19,761.11
  6. Step 6: Final answer
    x = 8,582.48

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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.