Home / 23,161.55-31,973.96-15,517.99

Finding the Fourth Proportional to 23,161.55, 31,973.96 and 15,517.99

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Solution

The fourth proportional to 23,161.55, 31,973.96 and 15,517.99 is: 21,422.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,161.55 : 31,973.96 = 15,517.99 : x
  2. Step 2: Convert to fraction form
    23,161.55/31,973.96 = 15,517.99/x
  3. Step 3: Cross multiply
    23,161.55x = 31,973.96 × 15,517.99
  4. Step 4: Simplify right side
    23,161.55x = 496,171,550.40
  5. Step 5: Solve for x
    x = 496,171,550.40/23,161.55
  6. Step 6: Final answer
    x = 21,422.21

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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.