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Finding the Fourth Proportional to 39,662.40, 59,454.17 and 19,880.58

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Solution

The fourth proportional to 39,662.40, 59,454.17 and 19,880.58 is: 29,801.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,662.40 : 59,454.17 = 19,880.58 : x
  2. Step 2: Convert to fraction form
    39,662.40/59,454.17 = 19,880.58/x
  3. Step 3: Cross multiply
    39,662.40x = 59,454.17 × 19,880.58
  4. Step 4: Simplify right side
    39,662.40x = 1,181,983,383.02
  5. Step 5: Solve for x
    x = 1,181,983,383.02/39,662.40
  6. Step 6: Final answer
    x = 29,801.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.