Home / 28,184.98-38,896.50-15,609.73

Finding the Fourth Proportional to 28,184.98, 38,896.50 and 15,609.73

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Solution

The fourth proportional to 28,184.98, 38,896.50 and 15,609.73 is: 21,542.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,184.98 : 38,896.50 = 15,609.73 : x
  2. Step 2: Convert to fraction form
    28,184.98/38,896.50 = 15,609.73/x
  3. Step 3: Cross multiply
    28,184.98x = 38,896.50 × 15,609.73
  4. Step 4: Simplify right side
    28,184.98x = 607,163,862.95
  5. Step 5: Solve for x
    x = 607,163,862.95/28,184.98
  6. Step 6: Final answer
    x = 21,542.11

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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.