Home / 19,763.98-27,284.25-15,277.60

Finding the Fourth Proportional to 19,763.98, 27,284.25 and 15,277.60

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Solution

The fourth proportional to 19,763.98, 27,284.25 and 15,277.60 is: 21,090.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,763.98 : 27,284.25 = 15,277.60 : x
  2. Step 2: Convert to fraction form
    19,763.98/27,284.25 = 15,277.60/x
  3. Step 3: Cross multiply
    19,763.98x = 27,284.25 × 15,277.60
  4. Step 4: Simplify right side
    19,763.98x = 416,837,857.80
  5. Step 5: Solve for x
    x = 416,837,857.80/19,763.98
  6. Step 6: Final answer
    x = 21,090.79

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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.