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Finding the Fourth Proportional to 35,355.96, 48,800.34 and 21,919.32

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Solution

The fourth proportional to 35,355.96, 48,800.34 and 21,919.32 is: 30,254.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,355.96 : 48,800.34 = 21,919.32 : x
  2. Step 2: Convert to fraction form
    35,355.96/48,800.34 = 21,919.32/x
  3. Step 3: Cross multiply
    35,355.96x = 48,800.34 × 21,919.32
  4. Step 4: Simplify right side
    35,355.96x = 1,069,670,268.57
  5. Step 5: Solve for x
    x = 1,069,670,268.57/35,355.96
  6. Step 6: Final answer
    x = 30,254.31

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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.