Home / 20,240.48-30,358.80-5,448.84

Finding the Fourth Proportional to 20,240.48, 30,358.80 and 5,448.84

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Solution

The fourth proportional to 20,240.48, 30,358.80 and 5,448.84 is: 8,172.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,240.48 : 30,358.80 = 5,448.84 : x
  2. Step 2: Convert to fraction form
    20,240.48/30,358.80 = 5,448.84/x
  3. Step 3: Cross multiply
    20,240.48x = 30,358.80 × 5,448.84
  4. Step 4: Simplify right side
    20,240.48x = 165,420,243.79
  5. Step 5: Solve for x
    x = 165,420,243.79/20,240.48
  6. Step 6: Final answer
    x = 8,172.74

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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.