Home / 39,772.92-54,886.13-21,867.77

Finding the Fourth Proportional to 39,772.92, 54,886.13 and 21,867.77

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Solution

The fourth proportional to 39,772.92, 54,886.13 and 21,867.77 is: 30,177.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,772.92 : 54,886.13 = 21,867.77 : x
  2. Step 2: Convert to fraction form
    39,772.92/54,886.13 = 21,867.77/x
  3. Step 3: Cross multiply
    39,772.92x = 54,886.13 × 21,867.77
  4. Step 4: Simplify right side
    39,772.92x = 1,200,236,992.60
  5. Step 5: Solve for x
    x = 1,200,236,992.60/39,772.92
  6. Step 6: Final answer
    x = 30,177.24

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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.