Home / 28,831.06-39,786.87-16,255.81

Finding the Fourth Proportional to 28,831.06, 39,786.87 and 16,255.81

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Solution

The fourth proportional to 28,831.06, 39,786.87 and 16,255.81 is: 22,433.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,831.06 : 39,786.87 = 16,255.81 : x
  2. Step 2: Convert to fraction form
    28,831.06/39,786.87 = 16,255.81/x
  3. Step 3: Cross multiply
    28,831.06x = 39,786.87 × 16,255.81
  4. Step 4: Simplify right side
    28,831.06x = 646,767,799.21
  5. Step 5: Solve for x
    x = 646,767,799.21/28,831.06
  6. Step 6: Final answer
    x = 22,433.02

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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.