Home / 19,759.87-27,278.54-15,273.49

Finding the Fourth Proportional to 19,759.87, 27,278.54 and 15,273.49

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Solution

The fourth proportional to 19,759.87, 27,278.54 and 15,273.49 is: 21,085.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,759.87 : 27,278.54 = 15,273.49 : x
  2. Step 2: Convert to fraction form
    19,759.87/27,278.54 = 15,273.49/x
  3. Step 3: Cross multiply
    19,759.87x = 27,278.54 × 15,273.49
  4. Step 4: Simplify right side
    19,759.87x = 416,638,507.90
  5. Step 5: Solve for x
    x = 416,638,507.90/19,759.87
  6. Step 6: Final answer
    x = 21,085.08

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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.