Home / 21,229.23-31,853.57-8,084.55

Finding the Fourth Proportional to 21,229.23, 31,853.57 and 8,084.55

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Solution

The fourth proportional to 21,229.23, 31,853.57 and 8,084.55 is: 12,130.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,229.23 : 31,853.57 = 8,084.55 : x
  2. Step 2: Convert to fraction form
    21,229.23/31,853.57 = 8,084.55/x
  3. Step 3: Cross multiply
    21,229.23x = 31,853.57 × 8,084.55
  4. Step 4: Simplify right side
    21,229.23x = 257,521,738.92
  5. Step 5: Solve for x
    x = 257,521,738.92/21,229.23
  6. Step 6: Final answer
    x = 12,130.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.