Home / 39,499.86-54,507.60-21,591.30

Finding the Fourth Proportional to 39,499.86, 54,507.60 and 21,591.30

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Solution

The fourth proportional to 39,499.86, 54,507.60 and 21,591.30 is: 29,794.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,499.86 : 54,507.60 = 21,591.30 : x
  2. Step 2: Convert to fraction form
    39,499.86/54,507.60 = 21,591.30/x
  3. Step 3: Cross multiply
    39,499.86x = 54,507.60 × 21,591.30
  4. Step 4: Simplify right side
    39,499.86x = 1,176,889,943.88
  5. Step 5: Solve for x
    x = 1,176,889,943.88/39,499.86
  6. Step 6: Final answer
    x = 29,794.79

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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.