Home / 20,352.20-30,328.43-19,683.27

Finding the Fourth Proportional to 20,352.20, 30,328.43 and 19,683.27

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Solution

The fourth proportional to 20,352.20, 30,328.43 and 19,683.27 is: 29,331.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,352.20 : 30,328.43 = 19,683.27 : x
  2. Step 2: Convert to fraction form
    20,352.20/30,328.43 = 19,683.27/x
  3. Step 3: Cross multiply
    20,352.20x = 30,328.43 × 19,683.27
  4. Step 4: Simplify right side
    20,352.20x = 596,962,577.95
  5. Step 5: Solve for x
    x = 596,962,577.95/20,352.20
  6. Step 6: Final answer
    x = 29,331.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.