Home / 31,712.45-43,759.64-17,561.75

Finding the Fourth Proportional to 31,712.45, 43,759.64 and 17,561.75

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Solution

The fourth proportional to 31,712.45, 43,759.64 and 17,561.75 is: 24,233.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,712.45 : 43,759.64 = 17,561.75 : x
  2. Step 2: Convert to fraction form
    31,712.45/43,759.64 = 17,561.75/x
  3. Step 3: Cross multiply
    31,712.45x = 43,759.64 × 17,561.75
  4. Step 4: Simplify right side
    31,712.45x = 768,495,682.88
  5. Step 5: Solve for x
    x = 768,495,682.88/31,712.45
  6. Step 6: Final answer
    x = 24,233.25

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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.