Home / 39,160.77-54,040.01-21,255.62

Finding the Fourth Proportional to 39,160.77, 54,040.01 and 21,255.62

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Solution

The fourth proportional to 39,160.77, 54,040.01 and 21,255.62 is: 29,331.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,160.77 : 54,040.01 = 21,255.62 : x
  2. Step 2: Convert to fraction form
    39,160.77/54,040.01 = 21,255.62/x
  3. Step 3: Cross multiply
    39,160.77x = 54,040.01 × 21,255.62
  4. Step 4: Simplify right side
    39,160.77x = 1,148,653,660.44
  5. Step 5: Solve for x
    x = 1,148,653,660.44/39,160.77
  6. Step 6: Final answer
    x = 29,331.75

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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.