Home / 22,776.30-31,431.34-12,704.48

Finding the Fourth Proportional to 22,776.30, 31,431.34 and 12,704.48

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Solution

The fourth proportional to 22,776.30, 31,431.34 and 12,704.48 is: 17,532.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,776.30 : 31,431.34 = 12,704.48 : x
  2. Step 2: Convert to fraction form
    22,776.30/31,431.34 = 12,704.48/x
  3. Step 3: Cross multiply
    22,776.30x = 31,431.34 × 12,704.48
  4. Step 4: Simplify right side
    22,776.30x = 399,318,609.72
  5. Step 5: Solve for x
    x = 399,318,609.72/22,776.30
  6. Step 6: Final answer
    x = 17,532.20

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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.