Home / 38,991.26-58,491.75-12,688.94

Finding the Fourth Proportional to 38,991.26, 58,491.75 and 12,688.94

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Solution

The fourth proportional to 38,991.26, 58,491.75 and 12,688.94 is: 19,034.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,991.26 : 58,491.75 = 12,688.94 : x
  2. Step 2: Convert to fraction form
    38,991.26/58,491.75 = 12,688.94/x
  3. Step 3: Cross multiply
    38,991.26x = 58,491.75 × 12,688.94
  4. Step 4: Simplify right side
    38,991.26x = 742,198,306.25
  5. Step 5: Solve for x
    x = 742,198,306.25/38,991.26
  6. Step 6: Final answer
    x = 19,034.99

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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.