Home / 38,639.02-53,338.24-25,221.78

Finding the Fourth Proportional to 38,639.02, 53,338.24 and 25,221.78

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Solution

The fourth proportional to 38,639.02, 53,338.24 and 25,221.78 is: 34,816.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,639.02 : 53,338.24 = 25,221.78 : x
  2. Step 2: Convert to fraction form
    38,639.02/53,338.24 = 25,221.78/x
  3. Step 3: Cross multiply
    38,639.02x = 53,338.24 × 25,221.78
  4. Step 4: Simplify right side
    38,639.02x = 1,345,285,354.87
  5. Step 5: Solve for x
    x = 1,345,285,354.87/38,639.02
  6. Step 6: Final answer
    x = 34,816.76

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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.