Home / 19,156.60-28,670.10-16,823.80

Finding the Fourth Proportional to 19,156.60, 28,670.10 and 16,823.80

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Solution

The fourth proportional to 19,156.60, 28,670.10 and 16,823.80 is: 25,178.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,156.60 : 28,670.10 = 16,823.80 : x
  2. Step 2: Convert to fraction form
    19,156.60/28,670.10 = 16,823.80/x
  3. Step 3: Cross multiply
    19,156.60x = 28,670.10 × 16,823.80
  4. Step 4: Simplify right side
    19,156.60x = 482,340,028.38
  5. Step 5: Solve for x
    x = 482,340,028.38/19,156.60
  6. Step 6: Final answer
    x = 25,178.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.