Home / 21,003.37-31,505.97-9,769.25

Finding the Fourth Proportional to 21,003.37, 31,505.97 and 9,769.25

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Solution

The fourth proportional to 21,003.37, 31,505.97 and 9,769.25 is: 14,654.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,003.37 : 31,505.97 = 9,769.25 : x
  2. Step 2: Convert to fraction form
    21,003.37/31,505.97 = 9,769.25/x
  3. Step 3: Cross multiply
    21,003.37x = 31,505.97 × 9,769.25
  4. Step 4: Simplify right side
    21,003.37x = 307,789,697.42
  5. Step 5: Solve for x
    x = 307,789,697.42/21,003.37
  6. Step 6: Final answer
    x = 14,654.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.