Home / 39,203.10-54,099.56-21,297.92

Finding the Fourth Proportional to 39,203.10, 54,099.56 and 21,297.92

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Solution

The fourth proportional to 39,203.10, 54,099.56 and 21,297.92 is: 29,390.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,203.10 : 54,099.56 = 21,297.92 : x
  2. Step 2: Convert to fraction form
    39,203.10/54,099.56 = 21,297.92/x
  3. Step 3: Cross multiply
    39,203.10x = 54,099.56 × 21,297.92
  4. Step 4: Simplify right side
    39,203.10x = 1,152,207,883.66
  5. Step 5: Solve for x
    x = 1,152,207,883.66/39,203.10
  6. Step 6: Final answer
    x = 29,390.73

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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.