Home / 21,755.79-30,020.22-12,324.35

Finding the Fourth Proportional to 21,755.79, 30,020.22 and 12,324.35

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Solution

The fourth proportional to 21,755.79, 30,020.22 and 12,324.35 is: 17,006.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,755.79 : 30,020.22 = 12,324.35 : x
  2. Step 2: Convert to fraction form
    21,755.79/30,020.22 = 12,324.35/x
  3. Step 3: Cross multiply
    21,755.79x = 30,020.22 × 12,324.35
  4. Step 4: Simplify right side
    21,755.79x = 369,979,773.41
  5. Step 5: Solve for x
    x = 369,979,773.41/21,755.79
  6. Step 6: Final answer
    x = 17,006.04

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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.