Home / 26,447.12-39,631-15,327.76

Finding the Fourth Proportional to 26,447.12, 39,631 and 15,327.76

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Solution

The fourth proportional to 26,447.12, 39,631 and 15,327.76 is: 22,968.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,447.12 : 39,631 = 15,327.76 : x
  2. Step 2: Convert to fraction form
    26,447.12/39,631 = 15,327.76/x
  3. Step 3: Cross multiply
    26,447.12x = 39,631 × 15,327.76
  4. Step 4: Simplify right side
    26,447.12x = 607,454,456.56
  5. Step 5: Solve for x
    x = 607,454,456.56/26,447.12
  6. Step 6: Final answer
    x = 22,968.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.