Home / 21,554.40-29,764.62-16,240

Finding the Fourth Proportional to 21,554.40, 29,764.62 and 16,240

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Solution

The fourth proportional to 21,554.40, 29,764.62 and 16,240 is: 22,425.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,554.40 : 29,764.62 = 16,240 : x
  2. Step 2: Convert to fraction form
    21,554.40/29,764.62 = 16,240/x
  3. Step 3: Cross multiply
    21,554.40x = 29,764.62 × 16,240
  4. Step 4: Simplify right side
    21,554.40x = 483,377,428.80
  5. Step 5: Solve for x
    x = 483,377,428.80/21,554.40
  6. Step 6: Final answer
    x = 22,425.93

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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.