Home / 21,772.12-30,052.26-12,818.92

Finding the Fourth Proportional to 21,772.12, 30,052.26 and 12,818.92

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Solution

The fourth proportional to 21,772.12, 30,052.26 and 12,818.92 is: 17,694.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,772.12 : 30,052.26 = 12,818.92 : x
  2. Step 2: Convert to fraction form
    21,772.12/30,052.26 = 12,818.92/x
  3. Step 3: Cross multiply
    21,772.12x = 30,052.26 × 12,818.92
  4. Step 4: Simplify right side
    21,772.12x = 385,237,516.76
  5. Step 5: Solve for x
    x = 385,237,516.76/21,772.12
  6. Step 6: Final answer
    x = 17,694.07

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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.