Home / 28,847.88-39,828.08-22,120.56

Finding the Fourth Proportional to 28,847.88, 39,828.08 and 22,120.56

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Solution

The fourth proportional to 28,847.88, 39,828.08 and 22,120.56 is: 30,540.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,847.88 : 39,828.08 = 22,120.56 : x
  2. Step 2: Convert to fraction form
    28,847.88/39,828.08 = 22,120.56/x
  3. Step 3: Cross multiply
    28,847.88x = 39,828.08 × 22,120.56
  4. Step 4: Simplify right side
    28,847.88x = 881,019,433.32
  5. Step 5: Solve for x
    x = 881,019,433.32/28,847.88
  6. Step 6: Final answer
    x = 30,540.18

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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.