Home / 19,819.75-27,352.47-11,436.25

Finding the Fourth Proportional to 19,819.75, 27,352.47 and 11,436.25

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Solution

The fourth proportional to 19,819.75, 27,352.47 and 11,436.25 is: 15,782.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,819.75 : 27,352.47 = 11,436.25 : x
  2. Step 2: Convert to fraction form
    19,819.75/27,352.47 = 11,436.25/x
  3. Step 3: Cross multiply
    19,819.75x = 27,352.47 × 11,436.25
  4. Step 4: Simplify right side
    19,819.75x = 312,809,685.04
  5. Step 5: Solve for x
    x = 312,809,685.04/19,819.75
  6. Step 6: Final answer
    x = 15,782.73

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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.