Home / 28,431.14-39,234.88-17,107.23

Finding the Fourth Proportional to 28,431.14, 39,234.88 and 17,107.23

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Solution

The fourth proportional to 28,431.14, 39,234.88 and 17,107.23 is: 23,607.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,431.14 : 39,234.88 = 17,107.23 : x
  2. Step 2: Convert to fraction form
    28,431.14/39,234.88 = 17,107.23/x
  3. Step 3: Cross multiply
    28,431.14x = 39,234.88 × 17,107.23
  4. Step 4: Simplify right side
    28,431.14x = 671,200,284.70
  5. Step 5: Solve for x
    x = 671,200,284.70/28,431.14
  6. Step 6: Final answer
    x = 23,607.93

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Half scale
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Double scale
Find fourth proportional to 28,432.14, 39,236.26 and 17,108.23
Similar ratio
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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.