Home / 31,212.96-43,070.56-18,466.62

Finding the Fourth Proportional to 31,212.96, 43,070.56 and 18,466.62

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Solution

The fourth proportional to 31,212.96, 43,070.56 and 18,466.62 is: 25,481.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,212.96 : 43,070.56 = 18,466.62 : x
  2. Step 2: Convert to fraction form
    31,212.96/43,070.56 = 18,466.62/x
  3. Step 3: Cross multiply
    31,212.96x = 43,070.56 × 18,466.62
  4. Step 4: Simplify right side
    31,212.96x = 795,367,664.71
  5. Step 5: Solve for x
    x = 795,367,664.71/31,212.96
  6. Step 6: Final answer
    x = 25,481.97

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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.