Home / 28,719.70-39,634.04-17,391.26

Finding the Fourth Proportional to 28,719.70, 39,634.04 and 17,391.26

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Solution

The fourth proportional to 28,719.70, 39,634.04 and 17,391.26 is: 24,000.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,719.70 : 39,634.04 = 17,391.26 : x
  2. Step 2: Convert to fraction form
    28,719.70/39,634.04 = 17,391.26/x
  3. Step 3: Cross multiply
    28,719.70x = 39,634.04 × 17,391.26
  4. Step 4: Simplify right side
    28,719.70x = 689,286,037.05
  5. Step 5: Solve for x
    x = 689,286,037.05/28,719.70
  6. Step 6: Final answer
    x = 24,000.46

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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.