Home / 39,600.72-54,649.44-21,695.76

Finding the Fourth Proportional to 39,600.72, 54,649.44 and 21,695.76

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Solution

The fourth proportional to 39,600.72, 54,649.44 and 21,695.76 is: 29,940.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,600.72 : 54,649.44 = 21,695.76 : x
  2. Step 2: Convert to fraction form
    39,600.72/54,649.44 = 21,695.76/x
  3. Step 3: Cross multiply
    39,600.72x = 54,649.44 × 21,695.76
  4. Step 4: Simplify right side
    39,600.72x = 1,185,661,134.37
  5. Step 5: Solve for x
    x = 1,185,661,134.37/39,600.72
  6. Step 6: Final answer
    x = 29,940.39

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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.