Home / 20,324.32-28,045.85-11,824.79

Finding the Fourth Proportional to 20,324.32, 28,045.85 and 11,824.79

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Solution

The fourth proportional to 20,324.32, 28,045.85 and 11,824.79 is: 16,317.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,324.32 : 28,045.85 = 11,824.79 : x
  2. Step 2: Convert to fraction form
    20,324.32/28,045.85 = 11,824.79/x
  3. Step 3: Cross multiply
    20,324.32x = 28,045.85 × 11,824.79
  4. Step 4: Simplify right side
    20,324.32x = 331,636,087.27
  5. Step 5: Solve for x
    x = 331,636,087.27/20,324.32
  6. Step 6: Final answer
    x = 16,317.21

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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.