Home / 39,136.21-58,652.40-21,321.17

Finding the Fourth Proportional to 39,136.21, 58,652.40 and 21,321.17

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Solution

The fourth proportional to 39,136.21, 58,652.40 and 21,321.17 is: 31,953.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,136.21 : 58,652.40 = 21,321.17 : x
  2. Step 2: Convert to fraction form
    39,136.21/58,652.40 = 21,321.17/x
  3. Step 3: Cross multiply
    39,136.21x = 58,652.40 × 21,321.17
  4. Step 4: Simplify right side
    39,136.21x = 1,250,537,791.31
  5. Step 5: Solve for x
    x = 1,250,537,791.31/39,136.21
  6. Step 6: Final answer
    x = 31,953.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.