Home / 31,446.45-43,391.16-18,015.12

Finding the Fourth Proportional to 31,446.45, 43,391.16 and 18,015.12

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Solution

The fourth proportional to 31,446.45, 43,391.16 and 18,015.12 is: 24,858.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,446.45 : 43,391.16 = 18,015.12 : x
  2. Step 2: Convert to fraction form
    31,446.45/43,391.16 = 18,015.12/x
  3. Step 3: Cross multiply
    31,446.45x = 43,391.16 × 18,015.12
  4. Step 4: Simplify right side
    31,446.45x = 781,696,954.34
  5. Step 5: Solve for x
    x = 781,696,954.34/31,446.45
  6. Step 6: Final answer
    x = 24,858.03

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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.