Home / 30,668.77-45,981.63-11,933.02

Finding the Fourth Proportional to 30,668.77, 45,981.63 and 11,933.02

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Solution

The fourth proportional to 30,668.77, 45,981.63 and 11,933.02 is: 17,891.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,668.77 : 45,981.63 = 11,933.02 : x
  2. Step 2: Convert to fraction form
    30,668.77/45,981.63 = 11,933.02/x
  3. Step 3: Cross multiply
    30,668.77x = 45,981.63 × 11,933.02
  4. Step 4: Simplify right side
    30,668.77x = 548,699,767.90
  5. Step 5: Solve for x
    x = 548,699,767.90/30,668.77
  6. Step 6: Final answer
    x = 17,891.16

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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.