Home / 21,911.96-30,227.94-14,355

Finding the Fourth Proportional to 21,911.96, 30,227.94 and 14,355

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Solution

The fourth proportional to 21,911.96, 30,227.94 and 14,355 is: 19,802.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,911.96 : 30,227.94 = 14,355 : x
  2. Step 2: Convert to fraction form
    21,911.96/30,227.94 = 14,355/x
  3. Step 3: Cross multiply
    21,911.96x = 30,227.94 × 14,355
  4. Step 4: Simplify right side
    21,911.96x = 433,922,078.70
  5. Step 5: Solve for x
    x = 433,922,078.70/21,911.96
  6. Step 6: Final answer
    x = 19,802.98

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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.