Home / 21,806.20-30,092.70-12,374.92

Finding the Fourth Proportional to 21,806.20, 30,092.70 and 12,374.92

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Solution

The fourth proportional to 21,806.20, 30,092.70 and 12,374.92 is: 17,077.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,806.20 : 30,092.70 = 12,374.92 : x
  2. Step 2: Convert to fraction form
    21,806.20/30,092.70 = 12,374.92/x
  3. Step 3: Cross multiply
    21,806.20x = 30,092.70 × 12,374.92
  4. Step 4: Simplify right side
    21,806.20x = 372,394,755.08
  5. Step 5: Solve for x
    x = 372,394,755.08/21,806.20
  6. Step 6: Final answer
    x = 17,077.47

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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.