Home / 21,027.96-31,541.64-6,246.90

Finding the Fourth Proportional to 21,027.96, 31,541.64 and 6,246.90

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Solution

The fourth proportional to 21,027.96, 31,541.64 and 6,246.90 is: 9,370.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,027.96 : 31,541.64 = 6,246.90 : x
  2. Step 2: Convert to fraction form
    21,027.96/31,541.64 = 6,246.90/x
  3. Step 3: Cross multiply
    21,027.96x = 31,541.64 × 6,246.90
  4. Step 4: Simplify right side
    21,027.96x = 197,037,470.92
  5. Step 5: Solve for x
    x = 197,037,470.92/21,027.96
  6. Step 6: Final answer
    x = 9,370.26

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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.