Home / 38,745.87-58,118.81-12,469.07

Finding the Fourth Proportional to 38,745.87, 58,118.81 and 12,469.07

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Solution

The fourth proportional to 38,745.87, 58,118.81 and 12,469.07 is: 18,703.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,745.87 : 58,118.81 = 12,469.07 : x
  2. Step 2: Convert to fraction form
    38,745.87/58,118.81 = 12,469.07/x
  3. Step 3: Cross multiply
    38,745.87x = 58,118.81 × 12,469.07
  4. Step 4: Simplify right side
    38,745.87x = 724,687,510.21
  5. Step 5: Solve for x
    x = 724,687,510.21/38,745.87
  6. Step 6: Final answer
    x = 18,703.61

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1.5x scale

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.