Home / 31,526.82-43,524.81-20,930.94

Finding the Fourth Proportional to 31,526.82, 43,524.81 and 20,930.94

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Solution

The fourth proportional to 31,526.82, 43,524.81 and 20,930.94 is: 28,896.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,526.82 : 43,524.81 = 20,930.94 : x
  2. Step 2: Convert to fraction form
    31,526.82/43,524.81 = 20,930.94/x
  3. Step 3: Cross multiply
    31,526.82x = 43,524.81 × 20,930.94
  4. Step 4: Simplify right side
    31,526.82x = 911,015,186.62
  5. Step 5: Solve for x
    x = 911,015,186.62/31,526.82
  6. Step 6: Final answer
    x = 28,896.51

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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.