Home / 31,169.21-43,029.02-19,239.12

Finding the Fourth Proportional to 31,169.21, 43,029.02 and 19,239.12

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Solution

The fourth proportional to 31,169.21, 43,029.02 and 19,239.12 is: 26,559.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,169.21 : 43,029.02 = 19,239.12 : x
  2. Step 2: Convert to fraction form
    31,169.21/43,029.02 = 19,239.12/x
  3. Step 3: Cross multiply
    31,169.21x = 43,029.02 × 19,239.12
  4. Step 4: Simplify right side
    31,169.21x = 827,840,527.36
  5. Step 5: Solve for x
    x = 827,840,527.36/31,169.21
  6. Step 6: Final answer
    x = 26,559.57

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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.