Home / 31,020.87-42,807.56-16,873.73

Finding the Fourth Proportional to 31,020.87, 42,807.56 and 16,873.73

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Solution

The fourth proportional to 31,020.87, 42,807.56 and 16,873.73 is: 23,285.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,020.87 : 42,807.56 = 16,873.73 : x
  2. Step 2: Convert to fraction form
    31,020.87/42,807.56 = 16,873.73/x
  3. Step 3: Cross multiply
    31,020.87x = 42,807.56 × 16,873.73
  4. Step 4: Simplify right side
    31,020.87x = 722,322,910.99
  5. Step 5: Solve for x
    x = 722,322,910.99/31,020.87
  6. Step 6: Final answer
    x = 23,285.06

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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.