Home / 35,620.78-49,157.21-19,705.16

Finding the Fourth Proportional to 35,620.78, 49,157.21 and 19,705.16

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Solution

The fourth proportional to 35,620.78, 49,157.21 and 19,705.16 is: 27,193.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,620.78 : 49,157.21 = 19,705.16 : x
  2. Step 2: Convert to fraction form
    35,620.78/49,157.21 = 19,705.16/x
  3. Step 3: Cross multiply
    35,620.78x = 49,157.21 × 19,705.16
  4. Step 4: Simplify right side
    35,620.78x = 968,650,688.20
  5. Step 5: Solve for x
    x = 968,650,688.20/35,620.78
  6. Step 6: Final answer
    x = 27,193.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.