Home / 31,515.21-43,490.70-17,367.75

Finding the Fourth Proportional to 31,515.21, 43,490.70 and 17,367.75

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Solution

The fourth proportional to 31,515.21, 43,490.70 and 17,367.75 is: 23,967.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,515.21 : 43,490.70 = 17,367.75 : x
  2. Step 2: Convert to fraction form
    31,515.21/43,490.70 = 17,367.75/x
  3. Step 3: Cross multiply
    31,515.21x = 43,490.70 × 17,367.75
  4. Step 4: Simplify right side
    31,515.21x = 755,335,604.93
  5. Step 5: Solve for x
    x = 755,335,604.93/31,515.21
  6. Step 6: Final answer
    x = 23,967.34

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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.