Home / 39,201.93-54,098.01-21,297.21

Finding the Fourth Proportional to 39,201.93, 54,098.01 and 21,297.21

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Solution

The fourth proportional to 39,201.93, 54,098.01 and 21,297.21 is: 29,389.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,201.93 : 54,098.01 = 21,297.21 : x
  2. Step 2: Convert to fraction form
    39,201.93/54,098.01 = 21,297.21/x
  3. Step 3: Cross multiply
    39,201.93x = 54,098.01 × 21,297.21
  4. Step 4: Simplify right side
    39,201.93x = 1,152,136,679.55
  5. Step 5: Solve for x
    x = 1,152,136,679.55/39,201.93
  6. Step 6: Final answer
    x = 29,389.79

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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.