Home / 20,242.89-30,360.89-5,448.51

Finding the Fourth Proportional to 20,242.89, 30,360.89 and 5,448.51

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Solution

The fourth proportional to 20,242.89, 30,360.89 and 5,448.51 is: 8,171.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,242.89 : 30,360.89 = 5,448.51 : x
  2. Step 2: Convert to fraction form
    20,242.89/30,360.89 = 5,448.51/x
  3. Step 3: Cross multiply
    20,242.89x = 30,360.89 × 5,448.51
  4. Step 4: Simplify right side
    20,242.89x = 165,421,626.40
  5. Step 5: Solve for x
    x = 165,421,626.40/20,242.89
  6. Step 6: Final answer
    x = 8,171.84

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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.