Home / 35,131.84-48,476-21,705.28

Finding the Fourth Proportional to 35,131.84, 48,476 and 21,705.28

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Solution

The fourth proportional to 35,131.84, 48,476 and 21,705.28 is: 29,949.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,131.84 : 48,476 = 21,705.28 : x
  2. Step 2: Convert to fraction form
    35,131.84/48,476 = 21,705.28/x
  3. Step 3: Cross multiply
    35,131.84x = 48,476 × 21,705.28
  4. Step 4: Simplify right side
    35,131.84x = 1,052,185,153.28
  5. Step 5: Solve for x
    x = 1,052,185,153.28/35,131.84
  6. Step 6: Final answer
    x = 29,949.62

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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.