Home / 32,811.50-45,279.87-20,243.54

Finding the Fourth Proportional to 32,811.50, 45,279.87 and 20,243.54

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Solution

The fourth proportional to 32,811.50, 45,279.87 and 20,243.54 is: 27,936.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,811.50 : 45,279.87 = 20,243.54 : x
  2. Step 2: Convert to fraction form
    32,811.50/45,279.87 = 20,243.54/x
  3. Step 3: Cross multiply
    32,811.50x = 45,279.87 × 20,243.54
  4. Step 4: Simplify right side
    32,811.50x = 916,624,859.54
  5. Step 5: Solve for x
    x = 916,624,859.54/32,811.50
  6. Step 6: Final answer
    x = 27,936.09

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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.