Home / 22,262.95-30,722.42-12,190.91

Finding the Fourth Proportional to 22,262.95, 30,722.42 and 12,190.91

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Solution

The fourth proportional to 22,262.95, 30,722.42 and 12,190.91 is: 16,823.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,262.95 : 30,722.42 = 12,190.91 : x
  2. Step 2: Convert to fraction form
    22,262.95/30,722.42 = 12,190.91/x
  3. Step 3: Cross multiply
    22,262.95x = 30,722.42 × 12,190.91
  4. Step 4: Simplify right side
    22,262.95x = 374,534,134.07
  5. Step 5: Solve for x
    x = 374,534,134.07/22,262.95
  6. Step 6: Final answer
    x = 16,823.20

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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.