Home / 31,392.49-43,321.44-18,817.24

Finding the Fourth Proportional to 31,392.49, 43,321.44 and 18,817.24

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Solution

The fourth proportional to 31,392.49, 43,321.44 and 18,817.24 is: 25,967.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,392.49 : 43,321.44 = 18,817.24 : x
  2. Step 2: Convert to fraction form
    31,392.49/43,321.44 = 18,817.24/x
  3. Step 3: Cross multiply
    31,392.49x = 43,321.44 × 18,817.24
  4. Step 4: Simplify right side
    31,392.49x = 815,189,933.63
  5. Step 5: Solve for x
    x = 815,189,933.63/31,392.49
  6. Step 6: Final answer
    x = 25,967.67

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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.