Home / 13,795.50-20,516.91-13,647.88

Finding the Fourth Proportional to 13,795.50, 20,516.91 and 13,647.88

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Solution

The fourth proportional to 13,795.50, 20,516.91 and 13,647.88 is: 20,297.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,795.50 : 20,516.91 = 13,647.88 : x
  2. Step 2: Convert to fraction form
    13,795.50/20,516.91 = 13,647.88/x
  3. Step 3: Cross multiply
    13,795.50x = 20,516.91 × 13,647.88
  4. Step 4: Simplify right side
    13,795.50x = 280,012,325.65
  5. Step 5: Solve for x
    x = 280,012,325.65/13,795.50
  6. Step 6: Final answer
    x = 20,297.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.