Home / 30,664.56-45,976.16-10,668.90

Finding the Fourth Proportional to 30,664.56, 45,976.16 and 10,668.90

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Solution

The fourth proportional to 30,664.56, 45,976.16 and 10,668.90 is: 15,996.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,664.56 : 45,976.16 = 10,668.90 : x
  2. Step 2: Convert to fraction form
    30,664.56/45,976.16 = 10,668.90/x
  3. Step 3: Cross multiply
    30,664.56x = 45,976.16 × 10,668.90
  4. Step 4: Simplify right side
    30,664.56x = 490,515,053.42
  5. Step 5: Solve for x
    x = 490,515,053.42/30,664.56
  6. Step 6: Final answer
    x = 15,996.15

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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.