Home / 31,033.73-42,819.08-18,287.44

Finding the Fourth Proportional to 31,033.73, 42,819.08 and 18,287.44

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Solution

The fourth proportional to 31,033.73, 42,819.08 and 18,287.44 is: 25,232.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,033.73 : 42,819.08 = 18,287.44 : x
  2. Step 2: Convert to fraction form
    31,033.73/42,819.08 = 18,287.44/x
  3. Step 3: Cross multiply
    31,033.73x = 42,819.08 × 18,287.44
  4. Step 4: Simplify right side
    31,033.73x = 783,051,231.88
  5. Step 5: Solve for x
    x = 783,051,231.88/31,033.73
  6. Step 6: Final answer
    x = 25,232.26

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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.