Home / 19,811.22-29,718.20-5,771.37

Finding the Fourth Proportional to 19,811.22, 29,718.20 and 5,771.37

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Solution

The fourth proportional to 19,811.22, 29,718.20 and 5,771.37 is: 8,657.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811.22 : 29,718.20 = 5,771.37 : x
  2. Step 2: Convert to fraction form
    19,811.22/29,718.20 = 5,771.37/x
  3. Step 3: Cross multiply
    19,811.22x = 29,718.20 × 5,771.37
  4. Step 4: Simplify right side
    19,811.22x = 171,514,579.34
  5. Step 5: Solve for x
    x = 171,514,579.34/19,811.22
  6. Step 6: Final answer
    x = 8,657.45

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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.