Home / 21,866.09-32,771.44-13,965.55

Finding the Fourth Proportional to 21,866.09, 32,771.44 and 13,965.55

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Solution

The fourth proportional to 21,866.09, 32,771.44 and 13,965.55 is: 20,930.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,866.09 : 32,771.44 = 13,965.55 : x
  2. Step 2: Convert to fraction form
    21,866.09/32,771.44 = 13,965.55/x
  3. Step 3: Cross multiply
    21,866.09x = 32,771.44 × 13,965.55
  4. Step 4: Simplify right side
    21,866.09x = 457,671,067.05
  5. Step 5: Solve for x
    x = 457,671,067.05/21,866.09
  6. Step 6: Final answer
    x = 20,930.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.