Home / 20,176.08-27,831.62-12,107.67

Finding the Fourth Proportional to 20,176.08, 27,831.62 and 12,107.67

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Solution

The fourth proportional to 20,176.08, 27,831.62 and 12,107.67 is: 16,701.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,176.08 : 27,831.62 = 12,107.67 : x
  2. Step 2: Convert to fraction form
    20,176.08/27,831.62 = 12,107.67/x
  3. Step 3: Cross multiply
    20,176.08x = 27,831.62 × 12,107.67
  4. Step 4: Simplify right side
    20,176.08x = 336,976,009.99
  5. Step 5: Solve for x
    x = 336,976,009.99/20,176.08
  6. Step 6: Final answer
    x = 16,701.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.