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Finding the Fourth Proportional to 19,513, 26,880.42 and 14,792.68

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Solution

The fourth proportional to 19,513, 26,880.42 and 14,792.68 is: 20,377.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,513 : 26,880.42 = 14,792.68 : x
  2. Step 2: Convert to fraction form
    19,513/26,880.42 = 14,792.68/x
  3. Step 3: Cross multiply
    19,513x = 26,880.42 × 14,792.68
  4. Step 4: Simplify right side
    19,513x = 397,633,451.33
  5. Step 5: Solve for x
    x = 397,633,451.33/19,513
  6. Step 6: Final answer
    x = 20,377.87

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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.