Home / 30,668.65-45,981.44-11,932.90

Finding the Fourth Proportional to 30,668.65, 45,981.44 and 11,932.90

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Solution

The fourth proportional to 30,668.65, 45,981.44 and 11,932.90 is: 17,890.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,668.65 : 45,981.44 = 11,932.90 : x
  2. Step 2: Convert to fraction form
    30,668.65/45,981.44 = 11,932.90/x
  3. Step 3: Cross multiply
    30,668.65x = 45,981.44 × 11,932.90
  4. Step 4: Simplify right side
    30,668.65x = 548,691,925.38
  5. Step 5: Solve for x
    x = 548,691,925.38/30,668.65
  6. Step 6: Final answer
    x = 17,890.97

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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.