Home / 20,983.24-31,460.28-7,832.08

Finding the Fourth Proportional to 20,983.24, 31,460.28 and 7,832.08

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Solution

The fourth proportional to 20,983.24, 31,460.28 and 7,832.08 is: 11,742.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,983.24 : 31,460.28 = 7,832.08 : x
  2. Step 2: Convert to fraction form
    20,983.24/31,460.28 = 7,832.08/x
  3. Step 3: Cross multiply
    20,983.24x = 31,460.28 × 7,832.08
  4. Step 4: Simplify right side
    20,983.24x = 246,399,429.78
  5. Step 5: Solve for x
    x = 246,399,429.78/20,983.24
  6. Step 6: Final answer
    x = 11,742.68

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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.