Home / 28,583.90-39,454.11-18,511.95

Finding the Fourth Proportional to 28,583.90, 39,454.11 and 18,511.95

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Solution

The fourth proportional to 28,583.90, 39,454.11 and 18,511.95 is: 25,551.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,583.90 : 39,454.11 = 18,511.95 : x
  2. Step 2: Convert to fraction form
    28,583.90/39,454.11 = 18,511.95/x
  3. Step 3: Cross multiply
    28,583.90x = 39,454.11 × 18,511.95
  4. Step 4: Simplify right side
    28,583.90x = 730,372,511.61
  5. Step 5: Solve for x
    x = 730,372,511.61/28,583.90
  6. Step 6: Final answer
    x = 25,551.89

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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.