Home / 22,183.65-30,443.05-20,931.59

Finding the Fourth Proportional to 22,183.65, 30,443.05 and 20,931.59

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Solution

The fourth proportional to 22,183.65, 30,443.05 and 20,931.59 is: 28,724.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,183.65 : 30,443.05 = 20,931.59 : x
  2. Step 2: Convert to fraction form
    22,183.65/30,443.05 = 20,931.59/x
  3. Step 3: Cross multiply
    22,183.65x = 30,443.05 × 20,931.59
  4. Step 4: Simplify right side
    22,183.65x = 637,221,440.95
  5. Step 5: Solve for x
    x = 637,221,440.95/22,183.65
  6. Step 6: Final answer
    x = 28,724.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.