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Finding the Fourth Proportional to 39,592, 59,392.86 and 11,890

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Solution

The fourth proportional to 39,592, 59,392.86 and 11,890 is: 17,836.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,592 : 59,392.86 = 11,890 : x
  2. Step 2: Convert to fraction form
    39,592/59,392.86 = 11,890/x
  3. Step 3: Cross multiply
    39,592x = 59,392.86 × 11,890
  4. Step 4: Simplify right side
    39,592x = 706,181,105.40
  5. Step 5: Solve for x
    x = 706,181,105.40/39,592
  6. Step 6: Final answer
    x = 17,836.46

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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.