Home / 28,936.64-39,935.88-16,361.12

Finding the Fourth Proportional to 28,936.64, 39,935.88 and 16,361.12

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Solution

The fourth proportional to 28,936.64, 39,935.88 and 16,361.12 is: 22,580.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,936.64 : 39,935.88 = 16,361.12 : x
  2. Step 2: Convert to fraction form
    28,936.64/39,935.88 = 16,361.12/x
  3. Step 3: Cross multiply
    28,936.64x = 39,935.88 × 16,361.12
  4. Step 4: Simplify right side
    28,936.64x = 653,395,724.99
  5. Step 5: Solve for x
    x = 653,395,724.99/28,936.64
  6. Step 6: Final answer
    x = 22,580.22

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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.