Home / 19,820.87-29,731.35-6,682.47

Finding the Fourth Proportional to 19,820.87, 29,731.35 and 6,682.47

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Solution

The fourth proportional to 19,820.87, 29,731.35 and 6,682.47 is: 10,023.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,820.87 : 29,731.35 = 6,682.47 : x
  2. Step 2: Convert to fraction form
    19,820.87/29,731.35 = 6,682.47/x
  3. Step 3: Cross multiply
    19,820.87x = 29,731.35 × 6,682.47
  4. Step 4: Simplify right side
    19,820.87x = 198,678,854.43
  5. Step 5: Solve for x
    x = 198,678,854.43/19,820.87
  6. Step 6: Final answer
    x = 10,023.72

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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.