Home / 20,541.14-28,284.64-16,942.72

Finding the Fourth Proportional to 20,541.14, 28,284.64 and 16,942.72

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Solution

The fourth proportional to 20,541.14, 28,284.64 and 16,942.72 is: 23,329.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,541.14 : 28,284.64 = 16,942.72 : x
  2. Step 2: Convert to fraction form
    20,541.14/28,284.64 = 16,942.72/x
  3. Step 3: Cross multiply
    20,541.14x = 28,284.64 × 16,942.72
  4. Step 4: Simplify right side
    20,541.14x = 479,218,735.82
  5. Step 5: Solve for x
    x = 479,218,735.82/20,541.14
  6. Step 6: Final answer
    x = 23,329.70

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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.