Home / 31,212.86-43,070.22-18,466.43

Finding the Fourth Proportional to 31,212.86, 43,070.22 and 18,466.43

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Solution

The fourth proportional to 31,212.86, 43,070.22 and 18,466.43 is: 25,481.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,212.86 : 43,070.22 = 18,466.43 : x
  2. Step 2: Convert to fraction form
    31,212.86/43,070.22 = 18,466.43/x
  3. Step 3: Cross multiply
    31,212.86x = 43,070.22 × 18,466.43
  4. Step 4: Simplify right side
    31,212.86x = 795,352,987.36
  5. Step 5: Solve for x
    x = 795,352,987.36/31,212.86
  6. Step 6: Final answer
    x = 25,481.58

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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.