Home / 22,177.63-30,605.79-12,106.72

Finding the Fourth Proportional to 22,177.63, 30,605.79 and 12,106.72

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Solution

The fourth proportional to 22,177.63, 30,605.79 and 12,106.72 is: 16,707.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,177.63 : 30,605.79 = 12,106.72 : x
  2. Step 2: Convert to fraction form
    22,177.63/30,605.79 = 12,106.72/x
  3. Step 3: Cross multiply
    22,177.63x = 30,605.79 × 12,106.72
  4. Step 4: Simplify right side
    22,177.63x = 370,535,729.91
  5. Step 5: Solve for x
    x = 370,535,729.91/22,177.63
  6. Step 6: Final answer
    x = 16,707.63

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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.