Home / 31,670.85-43,710.41-18,239.49

Finding the Fourth Proportional to 31,670.85, 43,710.41 and 18,239.49

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Solution

The fourth proportional to 31,670.85, 43,710.41 and 18,239.49 is: 25,173.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,670.85 : 43,710.41 = 18,239.49 : x
  2. Step 2: Convert to fraction form
    31,670.85/43,710.41 = 18,239.49/x
  3. Step 3: Cross multiply
    31,670.85x = 43,710.41 × 18,239.49
  4. Step 4: Simplify right side
    31,670.85x = 797,255,494.89
  5. Step 5: Solve for x
    x = 797,255,494.89/31,670.85
  6. Step 6: Final answer
    x = 25,173.16

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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.