Home / 19,930.73-27,505.67-10,978.24

Finding the Fourth Proportional to 19,930.73, 27,505.67 and 10,978.24

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Solution

The fourth proportional to 19,930.73, 27,505.67 and 10,978.24 is: 15,150.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,930.73 : 27,505.67 = 10,978.24 : x
  2. Step 2: Convert to fraction form
    19,930.73/27,505.67 = 10,978.24/x
  3. Step 3: Cross multiply
    19,930.73x = 27,505.67 × 10,978.24
  4. Step 4: Simplify right side
    19,930.73x = 301,963,722.97
  5. Step 5: Solve for x
    x = 301,963,722.97/19,930.73
  6. Step 6: Final answer
    x = 15,150.66

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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.