Home / 38,467.20-53,081.52-21,469.92

Finding the Fourth Proportional to 38,467.20, 53,081.52 and 21,469.92

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Solution

The fourth proportional to 38,467.20, 53,081.52 and 21,469.92 is: 29,626.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,467.20 : 53,081.52 = 21,469.92 : x
  2. Step 2: Convert to fraction form
    38,467.20/53,081.52 = 21,469.92/x
  3. Step 3: Cross multiply
    38,467.20x = 53,081.52 × 21,469.92
  4. Step 4: Simplify right side
    38,467.20x = 1,139,655,987.88
  5. Step 5: Solve for x
    x = 1,139,655,987.88/38,467.20
  6. Step 6: Final answer
    x = 29,626.69

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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.