Home / 20,959,715.57-28,924,111.17-11,792,336.45

Finding the Fourth Proportional to 20,959,715.57, 28,924,111.17 and 11,792,336.45

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Solution

The fourth proportional to 20,959,715.57, 28,924,111.17 and 11,792,336.45 is: 16,273,257.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,959,715.57 : 28,924,111.17 = 11,792,336.45 : x
  2. Step 2: Convert to fraction form
    20,959,715.57/28,924,111.17 = 11,792,336.45/x
  3. Step 3: Cross multiply
    20,959,715.57x = 28,924,111.17 × 11,792,336.45
  4. Step 4: Simplify right side
    20,959,715.57x = 341,082,850,289,222.62
  5. Step 5: Solve for x
    x = 341,082,850,289,222.62/20,959,715.57
  6. Step 6: Final answer
    x = 16,273,257.58

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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.