Home / 40,116.97-55,361.48-21,967.61

Finding the Fourth Proportional to 40,116.97, 55,361.48 and 21,967.61

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Solution

The fourth proportional to 40,116.97, 55,361.48 and 21,967.61 is: 30,315.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,116.97 : 55,361.48 = 21,967.61 : x
  2. Step 2: Convert to fraction form
    40,116.97/55,361.48 = 21,967.61/x
  3. Step 3: Cross multiply
    40,116.97x = 55,361.48 × 21,967.61
  4. Step 4: Simplify right side
    40,116.97x = 1,216,159,015.02
  5. Step 5: Solve for x
    x = 1,216,159,015.02/40,116.97
  6. Step 6: Final answer
    x = 30,315.32

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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.