Home / 20,656.06-30,984.10-19,604.28

Finding the Fourth Proportional to 20,656.06, 30,984.10 and 19,604.28

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Solution

The fourth proportional to 20,656.06, 30,984.10 and 19,604.28 is: 29,406.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,656.06 : 30,984.10 = 19,604.28 : x
  2. Step 2: Convert to fraction form
    20,656.06/30,984.10 = 19,604.28/x
  3. Step 3: Cross multiply
    20,656.06x = 30,984.10 × 19,604.28
  4. Step 4: Simplify right side
    20,656.06x = 607,420,971.95
  5. Step 5: Solve for x
    x = 607,420,971.95/20,656.06
  6. Step 6: Final answer
    x = 29,406.43

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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.