Home / 20,881,447.25-28,816,043.64-11,713,893.17

Finding the Fourth Proportional to 20,881,447.25, 28,816,043.64 and 11,713,893.17

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Solution

The fourth proportional to 20,881,447.25, 28,816,043.64 and 11,713,893.17 is: 16,164,974.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,881,447.25 : 28,816,043.64 = 11,713,893.17 : x
  2. Step 2: Convert to fraction form
    20,881,447.25/28,816,043.64 = 11,713,893.17/x
  3. Step 3: Cross multiply
    20,881,447.25x = 28,816,043.64 × 11,713,893.17
  4. Step 4: Simplify right side
    20,881,447.25x = 337,548,056,781,017.94
  5. Step 5: Solve for x
    x = 337,548,056,781,017.94/20,881,447.25
  6. Step 6: Final answer
    x = 16,164,974.23

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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.