Home / 28,544.22-39,392.55-15,966.78

Finding the Fourth Proportional to 28,544.22, 39,392.55 and 15,966.78

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Solution

The fourth proportional to 28,544.22, 39,392.55 and 15,966.78 is: 22,035.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,544.22 : 39,392.55 = 15,966.78 : x
  2. Step 2: Convert to fraction form
    28,544.22/39,392.55 = 15,966.78/x
  3. Step 3: Cross multiply
    28,544.22x = 39,392.55 × 15,966.78
  4. Step 4: Simplify right side
    28,544.22x = 628,972,179.49
  5. Step 5: Solve for x
    x = 628,972,179.49/28,544.22
  6. Step 6: Final answer
    x = 22,035.01

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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.