Home / 28,831.32-39,786.32-16,902.60

Finding the Fourth Proportional to 28,831.32, 39,786.32 and 16,902.60

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Solution

The fourth proportional to 28,831.32, 39,786.32 and 16,902.60 is: 23,325.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,831.32 : 39,786.32 = 16,902.60 : x
  2. Step 2: Convert to fraction form
    28,831.32/39,786.32 = 16,902.60/x
  3. Step 3: Cross multiply
    28,831.32x = 39,786.32 × 16,902.60
  4. Step 4: Simplify right side
    28,831.32x = 672,492,167.92
  5. Step 5: Solve for x
    x = 672,492,167.92/28,831.32
  6. Step 6: Final answer
    x = 23,325.06

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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.