Home / 39,216.72-58,831.92-12,914.40

Finding the Fourth Proportional to 39,216.72, 58,831.92 and 12,914.40

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Solution

The fourth proportional to 39,216.72, 58,831.92 and 12,914.40 is: 19,373.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,216.72 : 58,831.92 = 12,914.40 : x
  2. Step 2: Convert to fraction form
    39,216.72/58,831.92 = 12,914.40/x
  3. Step 3: Cross multiply
    39,216.72x = 58,831.92 × 12,914.40
  4. Step 4: Simplify right side
    39,216.72x = 759,778,947.65
  5. Step 5: Solve for x
    x = 759,778,947.65/39,216.72
  6. Step 6: Final answer
    x = 19,373.85

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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.