Home / 28,144.61-38,842.27-16,813.98

Finding the Fourth Proportional to 28,144.61, 38,842.27 and 16,813.98

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Solution

The fourth proportional to 28,144.61, 38,842.27 and 16,813.98 is: 23,204.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,144.61 : 38,842.27 = 16,813.98 : x
  2. Step 2: Convert to fraction form
    28,144.61/38,842.27 = 16,813.98/x
  3. Step 3: Cross multiply
    28,144.61x = 38,842.27 × 16,813.98
  4. Step 4: Simplify right side
    28,144.61x = 653,092,872.65
  5. Step 5: Solve for x
    x = 653,092,872.65/28,144.61
  6. Step 6: Final answer
    x = 23,204.90

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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.