Home / 32,785.92-45,242.10-18,636

Finding the Fourth Proportional to 32,785.92, 45,242.10 and 18,636

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Solution

The fourth proportional to 32,785.92, 45,242.10 and 18,636 is: 25,716.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,785.92 : 45,242.10 = 18,636 : x
  2. Step 2: Convert to fraction form
    32,785.92/45,242.10 = 18,636/x
  3. Step 3: Cross multiply
    32,785.92x = 45,242.10 × 18,636
  4. Step 4: Simplify right side
    32,785.92x = 843,131,775.60
  5. Step 5: Solve for x
    x = 843,131,775.60/32,785.92
  6. Step 6: Final answer
    x = 25,716.28

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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.