Home / 31,446.93-43,389.25-21,256.96

Finding the Fourth Proportional to 31,446.93, 43,389.25 and 21,256.96

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Solution

The fourth proportional to 31,446.93, 43,389.25 and 21,256.96 is: 29,329.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,446.93 : 43,389.25 = 21,256.96 : x
  2. Step 2: Convert to fraction form
    31,446.93/43,389.25 = 21,256.96/x
  3. Step 3: Cross multiply
    31,446.93x = 43,389.25 × 21,256.96
  4. Step 4: Simplify right side
    31,446.93x = 922,323,551.68
  5. Step 5: Solve for x
    x = 922,323,551.68/31,446.93
  6. Step 6: Final answer
    x = 29,329.53

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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.