Home / 29,109.20-43,728.60-28,007.60

Finding the Fourth Proportional to 29,109.20, 43,728.60 and 28,007.60

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Solution

The fourth proportional to 29,109.20, 43,728.60 and 28,007.60 is: 42,073.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,109.20 : 43,728.60 = 28,007.60 : x
  2. Step 2: Convert to fraction form
    29,109.20/43,728.60 = 28,007.60/x
  3. Step 3: Cross multiply
    29,109.20x = 43,728.60 × 28,007.60
  4. Step 4: Simplify right side
    29,109.20x = 1,224,733,137.36
  5. Step 5: Solve for x
    x = 1,224,733,137.36/29,109.20
  6. Step 6: Final answer
    x = 42,073.75

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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.