Home / 22,905.99-31,610.34-13,351.56

Finding the Fourth Proportional to 22,905.99, 31,610.34 and 13,351.56

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Solution

The fourth proportional to 22,905.99, 31,610.34 and 13,351.56 is: 18,425.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,905.99 : 31,610.34 = 13,351.56 : x
  2. Step 2: Convert to fraction form
    22,905.99/31,610.34 = 13,351.56/x
  3. Step 3: Cross multiply
    22,905.99x = 31,610.34 × 13,351.56
  4. Step 4: Simplify right side
    22,905.99x = 422,047,351.13
  5. Step 5: Solve for x
    x = 422,047,351.13/22,905.99
  6. Step 6: Final answer
    x = 18,425.20

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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.