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Finding the Fourth Proportional to 40,395, 60,602.34 and 12,693

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Solution

The fourth proportional to 40,395, 60,602.34 and 12,693 is: 19,042.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,395 : 60,602.34 = 12,693 : x
  2. Step 2: Convert to fraction form
    40,395/60,602.34 = 12,693/x
  3. Step 3: Cross multiply
    40,395x = 60,602.34 × 12,693
  4. Step 4: Simplify right side
    40,395x = 769,225,501.62
  5. Step 5: Solve for x
    x = 769,225,501.62/40,395
  6. Step 6: Final answer
    x = 19,042.59

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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.