Home / 39,241.77-54,152.15-21,336.79

Finding the Fourth Proportional to 39,241.77, 54,152.15 and 21,336.79

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Solution

The fourth proportional to 39,241.77, 54,152.15 and 21,336.79 is: 29,443.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,241.77 : 54,152.15 = 21,336.79 : x
  2. Step 2: Convert to fraction form
    39,241.77/54,152.15 = 21,336.79/x
  3. Step 3: Cross multiply
    39,241.77x = 54,152.15 × 21,336.79
  4. Step 4: Simplify right side
    39,241.77x = 1,155,433,052.60
  5. Step 5: Solve for x
    x = 1,155,433,052.60/39,241.77
  6. Step 6: Final answer
    x = 29,443.96

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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.