Home / 28,919.35-43,434.65-25,660.72

Finding the Fourth Proportional to 28,919.35, 43,434.65 and 25,660.72

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Solution

The fourth proportional to 28,919.35, 43,434.65 and 25,660.72 is: 38,540.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,919.35 : 43,434.65 = 25,660.72 : x
  2. Step 2: Convert to fraction form
    28,919.35/43,434.65 = 25,660.72/x
  3. Step 3: Cross multiply
    28,919.35x = 43,434.65 × 25,660.72
  4. Step 4: Simplify right side
    28,919.35x = 1,114,564,391.95
  5. Step 5: Solve for x
    x = 1,114,564,391.95/28,919.35
  6. Step 6: Final answer
    x = 38,540.44

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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.