Home / 54,921.97-82,382.18-21,642.32

Finding the Fourth Proportional to 54,921.97, 82,382.18 and 21,642.32

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Solution

The fourth proportional to 54,921.97, 82,382.18 and 21,642.32 is: 32,463.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,921.97 : 82,382.18 = 21,642.32 : x
  2. Step 2: Convert to fraction form
    54,921.97/82,382.18 = 21,642.32/x
  3. Step 3: Cross multiply
    54,921.97x = 82,382.18 × 21,642.32
  4. Step 4: Simplify right side
    54,921.97x = 1,782,941,187.69
  5. Step 5: Solve for x
    x = 1,782,941,187.69/54,921.97
  6. Step 6: Final answer
    x = 32,463.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.