Home / 39,431.48-54,415.40-25,284.33

Finding the Fourth Proportional to 39,431.48, 54,415.40 and 25,284.33

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Solution

The fourth proportional to 39,431.48, 54,415.40 and 25,284.33 is: 34,892.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,431.48 : 54,415.40 = 25,284.33 : x
  2. Step 2: Convert to fraction form
    39,431.48/54,415.40 = 25,284.33/x
  3. Step 3: Cross multiply
    39,431.48x = 54,415.40 × 25,284.33
  4. Step 4: Simplify right side
    39,431.48x = 1,375,856,804.26
  5. Step 5: Solve for x
    x = 1,375,856,804.26/39,431.48
  6. Step 6: Final answer
    x = 34,892.35

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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.