Home / 30,922.79-42,673.57-16,775.73

Finding the Fourth Proportional to 30,922.79, 42,673.57 and 16,775.73

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Solution

The fourth proportional to 30,922.79, 42,673.57 and 16,775.73 is: 23,150.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,922.79 : 42,673.57 = 16,775.73 : x
  2. Step 2: Convert to fraction form
    30,922.79/42,673.57 = 16,775.73/x
  3. Step 3: Cross multiply
    30,922.79x = 42,673.57 × 16,775.73
  4. Step 4: Simplify right side
    30,922.79x = 715,880,288.46
  5. Step 5: Solve for x
    x = 715,880,288.46/30,922.79
  6. Step 6: Final answer
    x = 23,150.58

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Double scale
Find fourth proportional to 30,923.79, 42,674.95 and 16,776.73
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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.