Home / 28,647,728.88-39,533,753.76-15,595,712.88

Finding the Fourth Proportional to 28,647,728.88, 39,533,753.76 and 15,595,712.88

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Solution

The fourth proportional to 28,647,728.88, 39,533,753.76 and 15,595,712.88 is: 21,522,022.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,647,728.88 : 39,533,753.76 = 15,595,712.88 : x
  2. Step 2: Convert to fraction form
    28,647,728.88/39,533,753.76 = 15,595,712.88/x
  3. Step 3: Cross multiply
    28,647,728.88x = 39,533,753.76 × 15,595,712.88
  4. Step 4: Simplify right side
    28,647,728.88x = 616,557,072,709,580.38
  5. Step 5: Solve for x
    x = 616,557,072,709,580.38/28,647,728.88
  6. Step 6: Final answer
    x = 21,522,022.75

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1.5x scale

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.