Home / 31,369.36-43,289.40-17,221.84

Finding the Fourth Proportional to 31,369.36, 43,289.40 and 17,221.84

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Solution

The fourth proportional to 31,369.36, 43,289.40 and 17,221.84 is: 23,765.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,369.36 : 43,289.40 = 17,221.84 : x
  2. Step 2: Convert to fraction form
    31,369.36/43,289.40 = 17,221.84/x
  3. Step 3: Cross multiply
    31,369.36x = 43,289.40 × 17,221.84
  4. Step 4: Simplify right side
    31,369.36x = 745,523,120.50
  5. Step 5: Solve for x
    x = 745,523,120.50/31,369.36
  6. Step 6: Final answer
    x = 23,765.97

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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.