Home / 39,018.87-58,535.68-12,371.57

Finding the Fourth Proportional to 39,018.87, 58,535.68 and 12,371.57

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Solution

The fourth proportional to 39,018.87, 58,535.68 and 12,371.57 is: 18,559.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,018.87 : 58,535.68 = 12,371.57 : x
  2. Step 2: Convert to fraction form
    39,018.87/58,535.68 = 12,371.57/x
  3. Step 3: Cross multiply
    39,018.87x = 58,535.68 × 12,371.57
  4. Step 4: Simplify right side
    39,018.87x = 724,178,131.74
  5. Step 5: Solve for x
    x = 724,178,131.74/39,018.87
  6. Step 6: Final answer
    x = 18,559.69

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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.