Home / 30,464.36-45,724.24-21,164.16

Finding the Fourth Proportional to 30,464.36, 45,724.24 and 21,164.16

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Solution

The fourth proportional to 30,464.36, 45,724.24 and 21,164.16 is: 31,765.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,464.36 : 45,724.24 = 21,164.16 : x
  2. Step 2: Convert to fraction form
    30,464.36/45,724.24 = 21,164.16/x
  3. Step 3: Cross multiply
    30,464.36x = 45,724.24 × 21,164.16
  4. Step 4: Simplify right side
    30,464.36x = 967,715,131.24
  5. Step 5: Solve for x
    x = 967,715,131.24/30,464.36
  6. Step 6: Final answer
    x = 31,765.48

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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.