Home / 20,824.10-31,249.98-9,731.64

Finding the Fourth Proportional to 20,824.10, 31,249.98 and 9,731.64

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Solution

The fourth proportional to 20,824.10, 31,249.98 and 9,731.64 is: 14,603.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,824.10 : 31,249.98 = 9,731.64 : x
  2. Step 2: Convert to fraction form
    20,824.10/31,249.98 = 9,731.64/x
  3. Step 3: Cross multiply
    20,824.10x = 31,249.98 × 9,731.64
  4. Step 4: Simplify right side
    20,824.10x = 304,113,555.37
  5. Step 5: Solve for x
    x = 304,113,555.37/20,824.10
  6. Step 6: Final answer
    x = 14,603.92

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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.