Home / 15,542.88-21,442.75-10,829.90

Finding the Fourth Proportional to 15,542.88, 21,442.75 and 10,829.90

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Solution

The fourth proportional to 15,542.88, 21,442.75 and 10,829.90 is: 14,940.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,542.88 : 21,442.75 = 10,829.90 : x
  2. Step 2: Convert to fraction form
    15,542.88/21,442.75 = 10,829.90/x
  3. Step 3: Cross multiply
    15,542.88x = 21,442.75 × 10,829.90
  4. Step 4: Simplify right side
    15,542.88x = 232,222,731.01
  5. Step 5: Solve for x
    x = 232,222,731.01/15,542.88
  6. Step 6: Final answer
    x = 14,940.78

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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.