Home / 31,405.44-43,342.08-18,829.92

Finding the Fourth Proportional to 31,405.44, 43,342.08 and 18,829.92

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Solution

The fourth proportional to 31,405.44, 43,342.08 and 18,829.92 is: 25,986.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,405.44 : 43,342.08 = 18,829.92 : x
  2. Step 2: Convert to fraction form
    31,405.44/43,342.08 = 18,829.92/x
  3. Step 3: Cross multiply
    31,405.44x = 43,342.08 × 18,829.92
  4. Step 4: Simplify right side
    31,405.44x = 816,127,899.03
  5. Step 5: Solve for x
    x = 816,127,899.03/31,405.44
  6. Step 6: Final answer
    x = 25,986.83

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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.