Home / 21,180.49-29,227.23-11,618.84

Finding the Fourth Proportional to 21,180.49, 29,227.23 and 11,618.84

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Solution

The fourth proportional to 21,180.49, 29,227.23 and 11,618.84 is: 16,032.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,180.49 : 29,227.23 = 11,618.84 : x
  2. Step 2: Convert to fraction form
    21,180.49/29,227.23 = 11,618.84/x
  3. Step 3: Cross multiply
    21,180.49x = 29,227.23 × 11,618.84
  4. Step 4: Simplify right side
    21,180.49x = 339,586,582.08
  5. Step 5: Solve for x
    x = 339,586,582.08/21,180.49
  6. Step 6: Final answer
    x = 16,032.99

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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.