Home / 21,045.73-29,042.19-11,485.37

Finding the Fourth Proportional to 21,045.73, 29,042.19 and 11,485.37

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Solution

The fourth proportional to 21,045.73, 29,042.19 and 11,485.37 is: 15,849.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,045.73 : 29,042.19 = 11,485.37 : x
  2. Step 2: Convert to fraction form
    21,045.73/29,042.19 = 11,485.37/x
  3. Step 3: Cross multiply
    21,045.73x = 29,042.19 × 11,485.37
  4. Step 4: Simplify right side
    21,045.73x = 333,560,421.03
  5. Step 5: Solve for x
    x = 333,560,421.03/21,045.73
  6. Step 6: Final answer
    x = 15,849.32

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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.