Home / 28,156.84-38,857.38-16,825.96

Finding the Fourth Proportional to 28,156.84, 38,857.38 and 16,825.96

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Solution

The fourth proportional to 28,156.84, 38,857.38 and 16,825.96 is: 23,220.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,156.84 : 38,857.38 = 16,825.96 : x
  2. Step 2: Convert to fraction form
    28,156.84/38,857.38 = 16,825.96/x
  3. Step 3: Cross multiply
    28,156.84x = 38,857.38 × 16,825.96
  4. Step 4: Simplify right side
    28,156.84x = 653,812,721.58
  5. Step 5: Solve for x
    x = 653,812,721.58/28,156.84
  6. Step 6: Final answer
    x = 23,220.39

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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.