Home / 39,600.66-54,648.75-21,695.64

Finding the Fourth Proportional to 39,600.66, 54,648.75 and 21,695.64

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Solution

The fourth proportional to 39,600.66, 54,648.75 and 21,695.64 is: 29,939.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,600.66 : 54,648.75 = 21,695.64 : x
  2. Step 2: Convert to fraction form
    39,600.66/54,648.75 = 21,695.64/x
  3. Step 3: Cross multiply
    39,600.66x = 54,648.75 × 21,695.64
  4. Step 4: Simplify right side
    39,600.66x = 1,185,639,606.45
  5. Step 5: Solve for x
    x = 1,185,639,606.45/39,600.66
  6. Step 6: Final answer
    x = 29,939.90

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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.