Home / 19,583.40-29,375.16-6,436.80

Finding the Fourth Proportional to 19,583.40, 29,375.16 and 6,436.80

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Solution

The fourth proportional to 19,583.40, 29,375.16 and 6,436.80 is: 9,655.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,583.40 : 29,375.16 = 6,436.80 : x
  2. Step 2: Convert to fraction form
    19,583.40/29,375.16 = 6,436.80/x
  3. Step 3: Cross multiply
    19,583.40x = 29,375.16 × 6,436.80
  4. Step 4: Simplify right side
    19,583.40x = 189,082,029.89
  5. Step 5: Solve for x
    x = 189,082,029.89/19,583.40
  6. Step 6: Final answer
    x = 9,655.22

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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.