Home / 35,115.88-48,485.30-21,705.52

Finding the Fourth Proportional to 35,115.88, 48,485.30 and 21,705.52

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Solution

The fourth proportional to 35,115.88, 48,485.30 and 21,705.52 is: 29,969.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,115.88 : 48,485.30 = 21,705.52 : x
  2. Step 2: Convert to fraction form
    35,115.88/48,485.30 = 21,705.52/x
  3. Step 3: Cross multiply
    35,115.88x = 48,485.30 × 21,705.52
  4. Step 4: Simplify right side
    35,115.88x = 1,052,398,648.86
  5. Step 5: Solve for x
    x = 1,052,398,648.86/35,115.88
  6. Step 6: Final answer
    x = 29,969.31

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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.