Home / 29,155.06-40,239.96-18,542.64

Finding the Fourth Proportional to 29,155.06, 40,239.96 and 18,542.64

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Solution

The fourth proportional to 29,155.06, 40,239.96 and 18,542.64 is: 25,592.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,155.06 : 40,239.96 = 18,542.64 : x
  2. Step 2: Convert to fraction form
    29,155.06/40,239.96 = 18,542.64/x
  3. Step 3: Cross multiply
    29,155.06x = 40,239.96 × 18,542.64
  4. Step 4: Simplify right side
    29,155.06x = 746,155,091.89
  5. Step 5: Solve for x
    x = 746,155,091.89/29,155.06
  6. Step 6: Final answer
    x = 25,592.64

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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.