Home / 21,183.21-31,775.81-9,504.63

Finding the Fourth Proportional to 21,183.21, 31,775.81 and 9,504.63

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Solution

The fourth proportional to 21,183.21, 31,775.81 and 9,504.63 is: 14,257.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,183.21 : 31,775.81 = 9,504.63 : x
  2. Step 2: Convert to fraction form
    21,183.21/31,775.81 = 9,504.63/x
  3. Step 3: Cross multiply
    21,183.21x = 31,775.81 × 9,504.63
  4. Step 4: Simplify right side
    21,183.21x = 302,017,269.48
  5. Step 5: Solve for x
    x = 302,017,269.48/21,183.21
  6. Step 6: Final answer
    x = 14,257.39

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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.