Home / 16,905.54-23,321.79-10,939.14

Finding the Fourth Proportional to 16,905.54, 23,321.79 and 10,939.14

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Solution

The fourth proportional to 16,905.54, 23,321.79 and 10,939.14 is: 15,090.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,905.54 : 23,321.79 = 10,939.14 : x
  2. Step 2: Convert to fraction form
    16,905.54/23,321.79 = 10,939.14/x
  3. Step 3: Cross multiply
    16,905.54x = 23,321.79 × 10,939.14
  4. Step 4: Simplify right side
    16,905.54x = 255,120,325.86
  5. Step 5: Solve for x
    x = 255,120,325.86/16,905.54
  6. Step 6: Final answer
    x = 15,090.93

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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.