Home / 19,107.97-28,665-17,787.27

Finding the Fourth Proportional to 19,107.97, 28,665 and 17,787.27

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Solution

The fourth proportional to 19,107.97, 28,665 and 17,787.27 is: 26,683.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,107.97 : 28,665 = 17,787.27 : x
  2. Step 2: Convert to fraction form
    19,107.97/28,665 = 17,787.27/x
  3. Step 3: Cross multiply
    19,107.97x = 28,665 × 17,787.27
  4. Step 4: Simplify right side
    19,107.97x = 509,872,094.55
  5. Step 5: Solve for x
    x = 509,872,094.55/19,107.97
  6. Step 6: Final answer
    x = 26,683.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.