Home / 28,538.99-39,374.88-17,211.95

Finding the Fourth Proportional to 28,538.99, 39,374.88 and 17,211.95

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Solution

The fourth proportional to 28,538.99, 39,374.88 and 17,211.95 is: 23,747.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,538.99 : 39,374.88 = 17,211.95 : x
  2. Step 2: Convert to fraction form
    28,538.99/39,374.88 = 17,211.95/x
  3. Step 3: Cross multiply
    28,538.99x = 39,374.88 × 17,211.95
  4. Step 4: Simplify right side
    28,538.99x = 677,718,465.82
  5. Step 5: Solve for x
    x = 677,718,465.82/28,538.99
  6. Step 6: Final answer
    x = 23,747.11

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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.