Home / 21,611.48-29,829.40-14,076.62

Finding the Fourth Proportional to 21,611.48, 29,829.40 and 14,076.62

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Solution

The fourth proportional to 21,611.48, 29,829.40 and 14,076.62 is: 19,429.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,611.48 : 29,829.40 = 14,076.62 : x
  2. Step 2: Convert to fraction form
    21,611.48/29,829.40 = 14,076.62/x
  3. Step 3: Cross multiply
    21,611.48x = 29,829.40 × 14,076.62
  4. Step 4: Simplify right side
    21,611.48x = 419,897,128.63
  5. Step 5: Solve for x
    x = 419,897,128.63/21,611.48
  6. Step 6: Final answer
    x = 19,429.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.