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Finding the Fourth Proportional to 40,669.36, 61,013.04 and 12,967.36

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Solution

The fourth proportional to 40,669.36, 61,013.04 and 12,967.36 is: 19,453.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,669.36 : 61,013.04 = 12,967.36 : x
  2. Step 2: Convert to fraction form
    40,669.36/61,013.04 = 12,967.36/x
  3. Step 3: Cross multiply
    40,669.36x = 61,013.04 × 12,967.36
  4. Step 4: Simplify right side
    40,669.36x = 791,178,054.37
  5. Step 5: Solve for x
    x = 791,178,054.37/40,669.36
  6. Step 6: Final answer
    x = 19,453.91

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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.