Home / 39,405.72-54,358.38-25,242.60

Finding the Fourth Proportional to 39,405.72, 54,358.38 and 25,242.60

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Solution

The fourth proportional to 39,405.72, 54,358.38 and 25,242.60 is: 34,821.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,405.72 : 54,358.38 = 25,242.60 : x
  2. Step 2: Convert to fraction form
    39,405.72/54,358.38 = 25,242.60/x
  3. Step 3: Cross multiply
    39,405.72x = 54,358.38 × 25,242.60
  4. Step 4: Simplify right side
    39,405.72x = 1,372,146,842.99
  5. Step 5: Solve for x
    x = 1,372,146,842.99/39,405.72
  6. Step 6: Final answer
    x = 34,821.01

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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.