Home / 21,253.44-29,351.52-15,939.84

Finding the Fourth Proportional to 21,253.44, 29,351.52 and 15,939.84

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Solution

The fourth proportional to 21,253.44, 29,351.52 and 15,939.84 is: 22,013.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,253.44 : 29,351.52 = 15,939.84 : x
  2. Step 2: Convert to fraction form
    21,253.44/29,351.52 = 15,939.84/x
  3. Step 3: Cross multiply
    21,253.44x = 29,351.52 × 15,939.84
  4. Step 4: Simplify right side
    21,253.44x = 467,858,532.56
  5. Step 5: Solve for x
    x = 467,858,532.56/21,253.44
  6. Step 6: Final answer
    x = 22,013.31

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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.