Home / 18,904.73-28,361.32-5,758.12

Finding the Fourth Proportional to 18,904.73, 28,361.32 and 5,758.12

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Solution

The fourth proportional to 18,904.73, 28,361.32 and 5,758.12 is: 8,638.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,904.73 : 28,361.32 = 5,758.12 : x
  2. Step 2: Convert to fraction form
    18,904.73/28,361.32 = 5,758.12/x
  3. Step 3: Cross multiply
    18,904.73x = 28,361.32 × 5,758.12
  4. Step 4: Simplify right side
    18,904.73x = 163,307,713.32
  5. Step 5: Solve for x
    x = 163,307,713.32/18,904.73
  6. Step 6: Final answer
    x = 8,638.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.