Home / 22,787.28-31,448.52-14,290.68

Finding the Fourth Proportional to 22,787.28, 31,448.52 and 14,290.68

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Solution

The fourth proportional to 22,787.28, 31,448.52 and 14,290.68 is: 19,722.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,787.28 : 31,448.52 = 14,290.68 : x
  2. Step 2: Convert to fraction form
    22,787.28/31,448.52 = 14,290.68/x
  3. Step 3: Cross multiply
    22,787.28x = 31,448.52 × 14,290.68
  4. Step 4: Simplify right side
    22,787.28x = 449,420,735.79
  5. Step 5: Solve for x
    x = 449,420,735.79/22,787.28
  6. Step 6: Final answer
    x = 19,722.44

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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.