Home / 20,025.78-30,040.71-6,876.44

Finding the Fourth Proportional to 20,025.78, 30,040.71 and 6,876.44

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Solution

The fourth proportional to 20,025.78, 30,040.71 and 6,876.44 is: 10,315.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,025.78 : 30,040.71 = 6,876.44 : x
  2. Step 2: Convert to fraction form
    20,025.78/30,040.71 = 6,876.44/x
  3. Step 3: Cross multiply
    20,025.78x = 30,040.71 × 6,876.44
  4. Step 4: Simplify right side
    20,025.78x = 206,572,989.67
  5. Step 5: Solve for x
    x = 206,572,989.67/20,025.78
  6. Step 6: Final answer
    x = 10,315.35

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1.5x scale

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.