Home / 16,905.83-23,331.50-9,831.75

Finding the Fourth Proportional to 16,905.83, 23,331.50 and 9,831.75

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Solution

The fourth proportional to 16,905.83, 23,331.50 and 9,831.75 is: 13,568.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,905.83 : 23,331.50 = 9,831.75 : x
  2. Step 2: Convert to fraction form
    16,905.83/23,331.50 = 9,831.75/x
  3. Step 3: Cross multiply
    16,905.83x = 23,331.50 × 9,831.75
  4. Step 4: Simplify right side
    16,905.83x = 229,389,425.97
  5. Step 5: Solve for x
    x = 229,389,425.97/16,905.83
  6. Step 6: Final answer
    x = 13,568.66

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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.