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Finding the Fourth Proportional to 40,293, 60,439.50 and 15,669

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Solution

The fourth proportional to 40,293, 60,439.50 and 15,669 is: 23,503.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,293 : 60,439.50 = 15,669 : x
  2. Step 2: Convert to fraction form
    40,293/60,439.50 = 15,669/x
  3. Step 3: Cross multiply
    40,293x = 60,439.50 × 15,669
  4. Step 4: Simplify right side
    40,293x = 947,026,525.50
  5. Step 5: Solve for x
    x = 947,026,525.50/40,293
  6. Step 6: Final answer
    x = 23,503.50

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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.