Home / 32,790.14-45,249.34-18,450.78

Finding the Fourth Proportional to 32,790.14, 45,249.34 and 18,450.78

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Solution

The fourth proportional to 32,790.14, 45,249.34 and 18,450.78 is: 25,461.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,790.14 : 45,249.34 = 18,450.78 : x
  2. Step 2: Convert to fraction form
    32,790.14/45,249.34 = 18,450.78/x
  3. Step 3: Cross multiply
    32,790.14x = 45,249.34 × 18,450.78
  4. Step 4: Simplify right side
    32,790.14x = 834,885,617.49
  5. Step 5: Solve for x
    x = 834,885,617.49/32,790.14
  6. Step 6: Final answer
    x = 25,461.48

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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.