Home / 28,522-39,361.20-15,946.78

Finding the Fourth Proportional to 28,522, 39,361.20 and 15,946.78

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Solution

The fourth proportional to 28,522, 39,361.20 and 15,946.78 is: 22,007.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,522 : 39,361.20 = 15,946.78 : x
  2. Step 2: Convert to fraction form
    28,522/39,361.20 = 15,946.78/x
  3. Step 3: Cross multiply
    28,522x = 39,361.20 × 15,946.78
  4. Step 4: Simplify right side
    28,522x = 627,684,396.94
  5. Step 5: Solve for x
    x = 627,684,396.94/28,522
  6. Step 6: Final answer
    x = 22,007.03

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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.