Home / 39,188.36-54,078.40-21,282.96

Finding the Fourth Proportional to 39,188.36, 54,078.40 and 21,282.96

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Solution

The fourth proportional to 39,188.36, 54,078.40 and 21,282.96 is: 29,369.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,188.36 : 54,078.40 = 21,282.96 : x
  2. Step 2: Convert to fraction form
    39,188.36/54,078.40 = 21,282.96/x
  3. Step 3: Cross multiply
    39,188.36x = 54,078.40 × 21,282.96
  4. Step 4: Simplify right side
    39,188.36x = 1,150,948,424.06
  5. Step 5: Solve for x
    x = 1,150,948,424.06/39,188.36
  6. Step 6: Final answer
    x = 29,369.65

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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.