Home / 31,446.72-43,344.48-21,370.56

Finding the Fourth Proportional to 31,446.72, 43,344.48 and 21,370.56

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Solution

The fourth proportional to 31,446.72, 43,344.48 and 21,370.56 is: 29,456.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,446.72 : 43,344.48 = 21,370.56 : x
  2. Step 2: Convert to fraction form
    31,446.72/43,344.48 = 21,370.56/x
  3. Step 3: Cross multiply
    31,446.72x = 43,344.48 × 21,370.56
  4. Step 4: Simplify right side
    31,446.72x = 926,295,810.51
  5. Step 5: Solve for x
    x = 926,295,810.51/31,446.72
  6. Step 6: Final answer
    x = 29,456.04

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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.