Home / 20,416.14-28,175.49-11,466.72

Finding the Fourth Proportional to 20,416.14, 28,175.49 and 11,466.72

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Solution

The fourth proportional to 20,416.14, 28,175.49 and 11,466.72 is: 15,824.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,416.14 : 28,175.49 = 11,466.72 : x
  2. Step 2: Convert to fraction form
    20,416.14/28,175.49 = 11,466.72/x
  3. Step 3: Cross multiply
    20,416.14x = 28,175.49 × 11,466.72
  4. Step 4: Simplify right side
    20,416.14x = 323,080,454.69
  5. Step 5: Solve for x
    x = 323,080,454.69/20,416.14
  6. Step 6: Final answer
    x = 15,824.76

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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.