Home / 31,810.54-43,884.15-20,475.97

Finding the Fourth Proportional to 31,810.54, 43,884.15 and 20,475.97

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Solution

The fourth proportional to 31,810.54, 43,884.15 and 20,475.97 is: 28,247.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,810.54 : 43,884.15 = 20,475.97 : x
  2. Step 2: Convert to fraction form
    31,810.54/43,884.15 = 20,475.97/x
  3. Step 3: Cross multiply
    31,810.54x = 43,884.15 × 20,475.97
  4. Step 4: Simplify right side
    31,810.54x = 898,570,538.88
  5. Step 5: Solve for x
    x = 898,570,538.88/31,810.54
  6. Step 6: Final answer
    x = 28,247.57

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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.