Home / 28,914.12-39,857.94-22,615.56

Finding the Fourth Proportional to 28,914.12, 39,857.94 and 22,615.56

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Solution

The fourth proportional to 28,914.12, 39,857.94 and 22,615.56 is: 31,175.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,914.12 : 39,857.94 = 22,615.56 : x
  2. Step 2: Convert to fraction form
    28,914.12/39,857.94 = 22,615.56/x
  3. Step 3: Cross multiply
    28,914.12x = 39,857.94 × 22,615.56
  4. Step 4: Simplify right side
    28,914.12x = 901,409,633.55
  5. Step 5: Solve for x
    x = 901,409,633.55/28,914.12
  6. Step 6: Final answer
    x = 31,175.41

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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.