Home / 20,424.26-30,581.31-14,171.06

Finding the Fourth Proportional to 20,424.26, 30,581.31 and 14,171.06

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Solution

The fourth proportional to 20,424.26, 30,581.31 and 14,171.06 is: 21,218.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,424.26 : 30,581.31 = 14,171.06 : x
  2. Step 2: Convert to fraction form
    20,424.26/30,581.31 = 14,171.06/x
  3. Step 3: Cross multiply
    20,424.26x = 30,581.31 × 14,171.06
  4. Step 4: Simplify right side
    20,424.26x = 433,369,578.89
  5. Step 5: Solve for x
    x = 433,369,578.89/20,424.26
  6. Step 6: Final answer
    x = 21,218.37

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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.