Home / 39,321.18-58,968-13,018.86

Finding the Fourth Proportional to 39,321.18, 58,968 and 13,018.86

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Solution

The fourth proportional to 39,321.18, 58,968 and 13,018.86 is: 19,523.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,321.18 : 58,968 = 13,018.86 : x
  2. Step 2: Convert to fraction form
    39,321.18/58,968 = 13,018.86/x
  3. Step 3: Cross multiply
    39,321.18x = 58,968 × 13,018.86
  4. Step 4: Simplify right side
    39,321.18x = 767,696,136.48
  5. Step 5: Solve for x
    x = 767,696,136.48/39,321.18
  6. Step 6: Final answer
    x = 19,523.73

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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.