Home / 18,931.92-28,354.68-16,155.60

Finding the Fourth Proportional to 18,931.92, 28,354.68 and 16,155.60

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Solution

The fourth proportional to 18,931.92, 28,354.68 and 16,155.60 is: 24,196.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,931.92 : 28,354.68 = 16,155.60 : x
  2. Step 2: Convert to fraction form
    18,931.92/28,354.68 = 16,155.60/x
  3. Step 3: Cross multiply
    18,931.92x = 28,354.68 × 16,155.60
  4. Step 4: Simplify right side
    18,931.92x = 458,086,868.21
  5. Step 5: Solve for x
    x = 458,086,868.21/18,931.92
  6. Step 6: Final answer
    x = 24,196.54

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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.