Home / 30,274.28-41,787.66-19,665.44

Finding the Fourth Proportional to 30,274.28, 41,787.66 and 19,665.44

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Solution

The fourth proportional to 30,274.28, 41,787.66 and 19,665.44 is: 27,144.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,274.28 : 41,787.66 = 19,665.44 : x
  2. Step 2: Convert to fraction form
    30,274.28/41,787.66 = 19,665.44/x
  3. Step 3: Cross multiply
    30,274.28x = 41,787.66 × 19,665.44
  4. Step 4: Simplify right side
    30,274.28x = 821,772,720.47
  5. Step 5: Solve for x
    x = 821,772,720.47/30,274.28
  6. Step 6: Final answer
    x = 27,144.25

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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.