Home / 25,057.87-34,579.85-13,728.08

Finding the Fourth Proportional to 25,057.87, 34,579.85 and 13,728.08

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Solution

The fourth proportional to 25,057.87, 34,579.85 and 13,728.08 is: 18,944.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,057.87 : 34,579.85 = 13,728.08 : x
  2. Step 2: Convert to fraction form
    25,057.87/34,579.85 = 13,728.08/x
  3. Step 3: Cross multiply
    25,057.87x = 34,579.85 × 13,728.08
  4. Step 4: Simplify right side
    25,057.87x = 474,714,965.00
  5. Step 5: Solve for x
    x = 474,714,965.00/25,057.87
  6. Step 6: Final answer
    x = 18,944.75

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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.