Home / 19,466.80-29,199.92-13,211.28

Finding the Fourth Proportional to 19,466.80, 29,199.92 and 13,211.28

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Solution

The fourth proportional to 19,466.80, 29,199.92 and 13,211.28 is: 19,816.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,466.80 : 29,199.92 = 13,211.28 : x
  2. Step 2: Convert to fraction form
    19,466.80/29,199.92 = 13,211.28/x
  3. Step 3: Cross multiply
    19,466.80x = 29,199.92 × 13,211.28
  4. Step 4: Simplify right side
    19,466.80x = 385,768,319.10
  5. Step 5: Solve for x
    x = 385,768,319.10/19,466.80
  6. Step 6: Final answer
    x = 19,816.73

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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.