Home / 25,193.12-34,774.48-15,755.68

Finding the Fourth Proportional to 25,193.12, 34,774.48 and 15,755.68

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Solution

The fourth proportional to 25,193.12, 34,774.48 and 15,755.68 is: 21,747.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,193.12 : 34,774.48 = 15,755.68 : x
  2. Step 2: Convert to fraction form
    25,193.12/34,774.48 = 15,755.68/x
  3. Step 3: Cross multiply
    25,193.12x = 34,774.48 × 15,755.68
  4. Step 4: Simplify right side
    25,193.12x = 547,895,579.05
  5. Step 5: Solve for x
    x = 547,895,579.05/25,193.12
  6. Step 6: Final answer
    x = 21,747.83

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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.