Home / 28,893.12-43,337.79-9,172.86

Finding the Fourth Proportional to 28,893.12, 43,337.79 and 9,172.86

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Solution

The fourth proportional to 28,893.12, 43,337.79 and 9,172.86 is: 13,758.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,893.12 : 43,337.79 = 9,172.86 : x
  2. Step 2: Convert to fraction form
    28,893.12/43,337.79 = 9,172.86/x
  3. Step 3: Cross multiply
    28,893.12x = 43,337.79 × 9,172.86
  4. Step 4: Simplify right side
    28,893.12x = 397,531,480.38
  5. Step 5: Solve for x
    x = 397,531,480.38/28,893.12
  6. Step 6: Final answer
    x = 13,758.69

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1.5x scale

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.