Home / 21,806.74-30,094.23-12,376.18

Finding the Fourth Proportional to 21,806.74, 30,094.23 and 12,376.18

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Solution

The fourth proportional to 21,806.74, 30,094.23 and 12,376.18 is: 17,079.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,806.74 : 30,094.23 = 12,376.18 : x
  2. Step 2: Convert to fraction form
    21,806.74/30,094.23 = 12,376.18/x
  3. Step 3: Cross multiply
    21,806.74x = 30,094.23 × 12,376.18
  4. Step 4: Simplify right side
    21,806.74x = 372,451,607.44
  5. Step 5: Solve for x
    x = 372,451,607.44/21,806.74
  6. Step 6: Final answer
    x = 17,079.66

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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.