Home / 31,855.55-43,959.71-17,515.36

Finding the Fourth Proportional to 31,855.55, 43,959.71 and 17,515.36

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Solution

The fourth proportional to 31,855.55, 43,959.71 and 17,515.36 is: 24,170.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,855.55 : 43,959.71 = 17,515.36 : x
  2. Step 2: Convert to fraction form
    31,855.55/43,959.71 = 17,515.36/x
  3. Step 3: Cross multiply
    31,855.55x = 43,959.71 × 17,515.36
  4. Step 4: Simplify right side
    31,855.55x = 769,970,080.03
  5. Step 5: Solve for x
    x = 769,970,080.03/31,855.55
  6. Step 6: Final answer
    x = 24,170.67

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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.