Home / 20,070.80-30,083.41-6,912.35

Finding the Fourth Proportional to 20,070.80, 30,083.41 and 6,912.35

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Solution

The fourth proportional to 20,070.80, 30,083.41 and 6,912.35 is: 10,360.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,070.80 : 30,083.41 = 6,912.35 : x
  2. Step 2: Convert to fraction form
    20,070.80/30,083.41 = 6,912.35/x
  3. Step 3: Cross multiply
    20,070.80x = 30,083.41 × 6,912.35
  4. Step 4: Simplify right side
    20,070.80x = 207,947,059.11
  5. Step 5: Solve for x
    x = 207,947,059.11/20,070.80
  6. Step 6: Final answer
    x = 10,360.68

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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.