Home / 38,974.34-53,787.78-21,977.70

Finding the Fourth Proportional to 38,974.34, 53,787.78 and 21,977.70

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Solution

The fourth proportional to 38,974.34, 53,787.78 and 21,977.70 is: 30,331.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,974.34 : 53,787.78 = 21,977.70 : x
  2. Step 2: Convert to fraction form
    38,974.34/53,787.78 = 21,977.70/x
  3. Step 3: Cross multiply
    38,974.34x = 53,787.78 × 21,977.70
  4. Step 4: Simplify right side
    38,974.34x = 1,182,131,692.51
  5. Step 5: Solve for x
    x = 1,182,131,692.51/38,974.34
  6. Step 6: Final answer
    x = 30,331.03

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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.