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Finding the Fourth Proportional to 38,107.79, 52,588.79 and 21,340.79

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Solution

The fourth proportional to 38,107.79, 52,588.79 and 21,340.79 is: 29,450.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,107.79 : 52,588.79 = 21,340.79 : x
  2. Step 2: Convert to fraction form
    38,107.79/52,588.79 = 21,340.79/x
  3. Step 3: Cross multiply
    38,107.79x = 52,588.79 × 21,340.79
  4. Step 4: Simplify right side
    38,107.79x = 1,122,285,954.10
  5. Step 5: Solve for x
    x = 1,122,285,954.10/38,107.79
  6. Step 6: Final answer
    x = 29,450.31

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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.