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Finding the Fourth Proportional to 40,573, 60,869.22 and 12,871

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Solution

The fourth proportional to 40,573, 60,869.22 and 12,871 is: 19,309.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,573 : 60,869.22 = 12,871 : x
  2. Step 2: Convert to fraction form
    40,573/60,869.22 = 12,871/x
  3. Step 3: Cross multiply
    40,573x = 60,869.22 × 12,871
  4. Step 4: Simplify right side
    40,573x = 783,447,730.62
  5. Step 5: Solve for x
    x = 783,447,730.62/40,573
  6. Step 6: Final answer
    x = 19,309.58

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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.