Home / 19,670.41-29,511.63-11,781.82

Finding the Fourth Proportional to 19,670.41, 29,511.63 and 11,781.82

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Solution

The fourth proportional to 19,670.41, 29,511.63 and 11,781.82 is: 17,676.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,670.41 : 29,511.63 = 11,781.82 : x
  2. Step 2: Convert to fraction form
    19,670.41/29,511.63 = 11,781.82/x
  3. Step 3: Cross multiply
    19,670.41x = 29,511.63 × 11,781.82
  4. Step 4: Simplify right side
    19,670.41x = 347,700,749.46
  5. Step 5: Solve for x
    x = 347,700,749.46/19,670.41
  6. Step 6: Final answer
    x = 17,676.33

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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.