Home / 39,587.32-54,629.94-21,682.32

Finding the Fourth Proportional to 39,587.32, 54,629.94 and 21,682.32

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Solution

The fourth proportional to 39,587.32, 54,629.94 and 21,682.32 is: 29,921.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,587.32 : 54,629.94 = 21,682.32 : x
  2. Step 2: Convert to fraction form
    39,587.32/54,629.94 = 21,682.32/x
  3. Step 3: Cross multiply
    39,587.32x = 54,629.94 × 21,682.32
  4. Step 4: Simplify right side
    39,587.32x = 1,184,503,840.66
  5. Step 5: Solve for x
    x = 1,184,503,840.66/39,587.32
  6. Step 6: Final answer
    x = 29,921.29

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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.