Home / 21,949.57-30,290.93-12,517.93

Finding the Fourth Proportional to 21,949.57, 30,290.93 and 12,517.93

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Solution

The fourth proportional to 21,949.57, 30,290.93 and 12,517.93 is: 17,275.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,949.57 : 30,290.93 = 12,517.93 : x
  2. Step 2: Convert to fraction form
    21,949.57/30,290.93 = 12,517.93/x
  3. Step 3: Cross multiply
    21,949.57x = 30,290.93 × 12,517.93
  4. Step 4: Simplify right side
    21,949.57x = 379,179,741.37
  5. Step 5: Solve for x
    x = 379,179,741.37/21,949.57
  6. Step 6: Final answer
    x = 17,275.04

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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.