Home / 21,992.19-30,348.46-13,034.37

Finding the Fourth Proportional to 21,992.19, 30,348.46 and 13,034.37

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Solution

The fourth proportional to 21,992.19, 30,348.46 and 13,034.37 is: 17,986.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,992.19 : 30,348.46 = 13,034.37 : x
  2. Step 2: Convert to fraction form
    21,992.19/30,348.46 = 13,034.37/x
  3. Step 3: Cross multiply
    21,992.19x = 30,348.46 × 13,034.37
  4. Step 4: Simplify right side
    21,992.19x = 395,573,056.57
  5. Step 5: Solve for x
    x = 395,573,056.57/21,992.19
  6. Step 6: Final answer
    x = 17,986.98

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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.