Home / 21,362.06-29,480.08-11,930.62

Finding the Fourth Proportional to 21,362.06, 29,480.08 and 11,930.62

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Solution

The fourth proportional to 21,362.06, 29,480.08 and 11,930.62 is: 16,464.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,362.06 : 29,480.08 = 11,930.62 : x
  2. Step 2: Convert to fraction form
    21,362.06/29,480.08 = 11,930.62/x
  3. Step 3: Cross multiply
    21,362.06x = 29,480.08 × 11,930.62
  4. Step 4: Simplify right side
    21,362.06x = 351,715,632.05
  5. Step 5: Solve for x
    x = 351,715,632.05/21,362.06
  6. Step 6: Final answer
    x = 16,464.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.