Home / 39,431.78-54,415.98-25,284.68

Finding the Fourth Proportional to 39,431.78, 54,415.98 and 25,284.68

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Solution

The fourth proportional to 39,431.78, 54,415.98 and 25,284.68 is: 34,892.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,431.78 : 54,415.98 = 25,284.68 : x
  2. Step 2: Convert to fraction form
    39,431.78/54,415.98 = 25,284.68/x
  3. Step 3: Cross multiply
    39,431.78x = 54,415.98 × 25,284.68
  4. Step 4: Simplify right side
    39,431.78x = 1,375,890,641.19
  5. Step 5: Solve for x
    x = 1,375,890,641.19/39,431.78
  6. Step 6: Final answer
    x = 34,892.94

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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.