Home / 31,217.58-43,074.66-18,464.42

Finding the Fourth Proportional to 31,217.58, 43,074.66 and 18,464.42

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Solution

The fourth proportional to 31,217.58, 43,074.66 and 18,464.42 is: 25,477.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,217.58 : 43,074.66 = 18,464.42 : x
  2. Step 2: Convert to fraction form
    31,217.58/43,074.66 = 18,464.42/x
  3. Step 3: Cross multiply
    31,217.58x = 43,074.66 × 18,464.42
  4. Step 4: Simplify right side
    31,217.58x = 795,348,398.22
  5. Step 5: Solve for x
    x = 795,348,398.22/31,217.58
  6. Step 6: Final answer
    x = 25,477.58

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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.