Home / 28,774.38-43,128.63-12,109.44

Finding the Fourth Proportional to 28,774.38, 43,128.63 and 12,109.44

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Solution

The fourth proportional to 28,774.38, 43,128.63 and 12,109.44 is: 18,150.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,774.38 : 43,128.63 = 12,109.44 : x
  2. Step 2: Convert to fraction form
    28,774.38/43,128.63 = 12,109.44/x
  3. Step 3: Cross multiply
    28,774.38x = 43,128.63 × 12,109.44
  4. Step 4: Simplify right side
    28,774.38x = 522,263,557.27
  5. Step 5: Solve for x
    x = 522,263,557.27/28,774.38
  6. Step 6: Final answer
    x = 18,150.30

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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.