Home / 15,324.81-21,157.92-10,028.58

Finding the Fourth Proportional to 15,324.81, 21,157.92 and 10,028.58

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Solution

The fourth proportional to 15,324.81, 21,157.92 and 10,028.58 is: 13,845.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,324.81 : 21,157.92 = 10,028.58 : x
  2. Step 2: Convert to fraction form
    15,324.81/21,157.92 = 10,028.58/x
  3. Step 3: Cross multiply
    15,324.81x = 21,157.92 × 10,028.58
  4. Step 4: Simplify right side
    15,324.81x = 212,183,893.35
  5. Step 5: Solve for x
    x = 212,183,893.35/15,324.81
  6. Step 6: Final answer
    x = 13,845.78

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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.