Home / 30,629.82-45,864.51-20,066.61

Finding the Fourth Proportional to 30,629.82, 45,864.51 and 20,066.61

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Solution

The fourth proportional to 30,629.82, 45,864.51 and 20,066.61 is: 30,047.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,629.82 : 45,864.51 = 20,066.61 : x
  2. Step 2: Convert to fraction form
    30,629.82/45,864.51 = 20,066.61/x
  3. Step 3: Cross multiply
    30,629.82x = 45,864.51 × 20,066.61
  4. Step 4: Simplify right side
    30,629.82x = 920,345,235.01
  5. Step 5: Solve for x
    x = 920,345,235.01/30,629.82
  6. Step 6: Final answer
    x = 30,047.36

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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.