Home / 39,136-58,691.68-12,834.63

Finding the Fourth Proportional to 39,136, 58,691.68 and 12,834.63

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Solution

The fourth proportional to 39,136, 58,691.68 and 12,834.63 is: 19,247.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,136 : 58,691.68 = 12,834.63 : x
  2. Step 2: Convert to fraction form
    39,136/58,691.68 = 12,834.63/x
  3. Step 3: Cross multiply
    39,136x = 58,691.68 × 12,834.63
  4. Step 4: Simplify right side
    39,136x = 753,285,996.88
  5. Step 5: Solve for x
    x = 753,285,996.88/39,136
  6. Step 6: Final answer
    x = 19,247.90

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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.