Home / 30,291.92-41,801.60-16,862.78

Finding the Fourth Proportional to 30,291.92, 41,801.60 and 16,862.78

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Solution

The fourth proportional to 30,291.92, 41,801.60 and 16,862.78 is: 23,269.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,291.92 : 41,801.60 = 16,862.78 : x
  2. Step 2: Convert to fraction form
    30,291.92/41,801.60 = 16,862.78/x
  3. Step 3: Cross multiply
    30,291.92x = 41,801.60 × 16,862.78
  4. Step 4: Simplify right side
    30,291.92x = 704,891,184.45
  5. Step 5: Solve for x
    x = 704,891,184.45/30,291.92
  6. Step 6: Final answer
    x = 23,269.94

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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.