Home / 39,787.05-54,907.47-21,883.44

Finding the Fourth Proportional to 39,787.05, 54,907.47 and 21,883.44

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Solution

The fourth proportional to 39,787.05, 54,907.47 and 21,883.44 is: 30,199.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,787.05 : 54,907.47 = 21,883.44 : x
  2. Step 2: Convert to fraction form
    39,787.05/54,907.47 = 21,883.44/x
  3. Step 3: Cross multiply
    39,787.05x = 54,907.47 × 21,883.44
  4. Step 4: Simplify right side
    39,787.05x = 1,201,564,325.30
  5. Step 5: Solve for x
    x = 1,201,564,325.30/39,787.05
  6. Step 6: Final answer
    x = 30,199.88

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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.