Home / 21,246.96-31,840.28-10,144.56

Finding the Fourth Proportional to 21,246.96, 31,840.28 and 10,144.56

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Solution

The fourth proportional to 21,246.96, 31,840.28 and 10,144.56 is: 15,202.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,246.96 : 31,840.28 = 10,144.56 : x
  2. Step 2: Convert to fraction form
    21,246.96/31,840.28 = 10,144.56/x
  3. Step 3: Cross multiply
    21,246.96x = 31,840.28 × 10,144.56
  4. Step 4: Simplify right side
    21,246.96x = 323,005,630.88
  5. Step 5: Solve for x
    x = 323,005,630.88/21,246.96
  6. Step 6: Final answer
    x = 15,202.44

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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.