Home / 20,179.05-30,266.34-5,389.26

Finding the Fourth Proportional to 20,179.05, 30,266.34 and 5,389.26

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Solution

The fourth proportional to 20,179.05, 30,266.34 and 5,389.26 is: 8,083.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,179.05 : 30,266.34 = 5,389.26 : x
  2. Step 2: Convert to fraction form
    20,179.05/30,266.34 = 5,389.26/x
  3. Step 3: Cross multiply
    20,179.05x = 30,266.34 × 5,389.26
  4. Step 4: Simplify right side
    20,179.05x = 163,113,175.51
  5. Step 5: Solve for x
    x = 163,113,175.51/20,179.05
  6. Step 6: Final answer
    x = 8,083.29

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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.