Home / 28,524.22-39,362.97-15,776.98

Finding the Fourth Proportional to 28,524.22, 39,362.97 and 15,776.98

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Solution

The fourth proportional to 28,524.22, 39,362.97 and 15,776.98 is: 21,771.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,524.22 : 39,362.97 = 15,776.98 : x
  2. Step 2: Convert to fraction form
    28,524.22/39,362.97 = 15,776.98/x
  3. Step 3: Cross multiply
    28,524.22x = 39,362.97 × 15,776.98
  4. Step 4: Simplify right side
    28,524.22x = 621,028,790.43
  5. Step 5: Solve for x
    x = 621,028,790.43/28,524.22
  6. Step 6: Final answer
    x = 21,771.98

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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.