Home / 20,792.25-28,693.58-11,361.02

Finding the Fourth Proportional to 20,792.25, 28,693.58 and 11,361.02

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Solution

The fourth proportional to 20,792.25, 28,693.58 and 11,361.02 is: 15,678.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,792.25 : 28,693.58 = 11,361.02 : x
  2. Step 2: Convert to fraction form
    20,792.25/28,693.58 = 11,361.02/x
  3. Step 3: Cross multiply
    20,792.25x = 28,693.58 × 11,361.02
  4. Step 4: Simplify right side
    20,792.25x = 325,988,135.98
  5. Step 5: Solve for x
    x = 325,988,135.98/20,792.25
  6. Step 6: Final answer
    x = 15,678.35

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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.