Home / 31,799.24-43,880.88-19,861.88

Finding the Fourth Proportional to 31,799.24, 43,880.88 and 19,861.88

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Solution

The fourth proportional to 31,799.24, 43,880.88 and 19,861.88 is: 27,408.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,799.24 : 43,880.88 = 19,861.88 : x
  2. Step 2: Convert to fraction form
    31,799.24/43,880.88 = 19,861.88/x
  3. Step 3: Cross multiply
    31,799.24x = 43,880.88 × 19,861.88
  4. Step 4: Simplify right side
    31,799.24x = 871,556,772.85
  5. Step 5: Solve for x
    x = 871,556,772.85/31,799.24
  6. Step 6: Final answer
    x = 27,408.10

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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.