Home / 22,297.29-30,765.21-15,128.19

Finding the Fourth Proportional to 22,297.29, 30,765.21 and 15,128.19

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Solution

The fourth proportional to 22,297.29, 30,765.21 and 15,128.19 is: 20,873.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,297.29 : 30,765.21 = 15,128.19 : x
  2. Step 2: Convert to fraction form
    22,297.29/30,765.21 = 15,128.19/x
  3. Step 3: Cross multiply
    22,297.29x = 30,765.21 × 15,128.19
  4. Step 4: Simplify right side
    22,297.29x = 465,421,942.27
  5. Step 5: Solve for x
    x = 465,421,942.27/22,297.29
  6. Step 6: Final answer
    x = 20,873.48

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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.