Home / 22,262.42-30,721.74-12,190.68

Finding the Fourth Proportional to 22,262.42, 30,721.74 and 12,190.68

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Solution

The fourth proportional to 22,262.42, 30,721.74 and 12,190.68 is: 16,822.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,262.42 : 30,721.74 = 12,190.68 : x
  2. Step 2: Convert to fraction form
    22,262.42/30,721.74 = 12,190.68/x
  3. Step 3: Cross multiply
    22,262.42x = 30,721.74 × 12,190.68
  4. Step 4: Simplify right side
    22,262.42x = 374,518,686.82
  5. Step 5: Solve for x
    x = 374,518,686.82/22,262.42
  6. Step 6: Final answer
    x = 16,822.91

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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.