Home / 31,183.71-46,782.87-21,327.63

Finding the Fourth Proportional to 31,183.71, 46,782.87 and 21,327.63

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Solution

The fourth proportional to 31,183.71, 46,782.87 and 21,327.63 is: 31,996.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,183.71 : 46,782.87 = 21,327.63 : x
  2. Step 2: Convert to fraction form
    31,183.71/46,782.87 = 21,327.63/x
  3. Step 3: Cross multiply
    31,183.71x = 46,782.87 × 21,327.63
  4. Step 4: Simplify right side
    31,183.71x = 997,767,741.70
  5. Step 5: Solve for x
    x = 997,767,741.70/31,183.71
  6. Step 6: Final answer
    x = 31,996.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.