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Finding the Fourth Proportional to 19,662.09, 26,981.09 and 17,880.09

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Solution

The fourth proportional to 19,662.09, 26,981.09 and 17,880.09 is: 24,535.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,662.09 : 26,981.09 = 17,880.09 : x
  2. Step 2: Convert to fraction form
    19,662.09/26,981.09 = 17,880.09/x
  3. Step 3: Cross multiply
    19,662.09x = 26,981.09 × 17,880.09
  4. Step 4: Simplify right side
    19,662.09x = 482,424,228.10
  5. Step 5: Solve for x
    x = 482,424,228.10/19,662.09
  6. Step 6: Final answer
    x = 24,535.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.