Home / 19,755.87-27,273.02-15,269.48

Finding the Fourth Proportional to 19,755.87, 27,273.02 and 15,269.48

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Solution

The fourth proportional to 19,755.87, 27,273.02 and 15,269.48 is: 21,079.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,755.87 : 27,273.02 = 15,269.48 : x
  2. Step 2: Convert to fraction form
    19,755.87/27,273.02 = 15,269.48/x
  3. Step 3: Cross multiply
    19,755.87x = 27,273.02 × 15,269.48
  4. Step 4: Simplify right side
    19,755.87x = 416,444,825.26
  5. Step 5: Solve for x
    x = 416,444,825.26/19,755.87
  6. Step 6: Final answer
    x = 21,079.55

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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.