Home / 30,356.96-45,558.99-21,062.21

Finding the Fourth Proportional to 30,356.96, 45,558.99 and 21,062.21

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Solution

The fourth proportional to 30,356.96, 45,558.99 and 21,062.21 is: 31,609.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,356.96 : 45,558.99 = 21,062.21 : x
  2. Step 2: Convert to fraction form
    30,356.96/45,558.99 = 21,062.21/x
  3. Step 3: Cross multiply
    30,356.96x = 45,558.99 × 21,062.21
  4. Step 4: Simplify right side
    30,356.96x = 959,572,786.97
  5. Step 5: Solve for x
    x = 959,572,786.97/30,356.96
  6. Step 6: Final answer
    x = 31,609.65

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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.