Home / 20,959,736.40-28,924,139.76-11,792,357.28

Finding the Fourth Proportional to 20,959,736.40, 28,924,139.76 and 11,792,357.28

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Solution

The fourth proportional to 20,959,736.40, 28,924,139.76 and 11,792,357.28 is: 16,273,286.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,959,736.40 : 28,924,139.76 = 11,792,357.28 : x
  2. Step 2: Convert to fraction form
    20,959,736.40/28,924,139.76 = 11,792,357.28/x
  3. Step 3: Cross multiply
    20,959,736.40x = 28,924,139.76 × 11,792,357.28
  4. Step 4: Simplify right side
    20,959,736.40x = 341,083,790,066,573.44
  5. Step 5: Solve for x
    x = 341,083,790,066,573.44/20,959,736.40
  6. Step 6: Final answer
    x = 16,273,286.25

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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.