Home / 43,678.54-65,548.10-19,988.98

Finding the Fourth Proportional to 43,678.54, 65,548.10 and 19,988.98

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Solution

The fourth proportional to 43,678.54, 65,548.10 and 19,988.98 is: 29,997.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,678.54 : 65,548.10 = 19,988.98 : x
  2. Step 2: Convert to fraction form
    43,678.54/65,548.10 = 19,988.98/x
  3. Step 3: Cross multiply
    43,678.54x = 65,548.10 × 19,988.98
  4. Step 4: Simplify right side
    43,678.54x = 1,310,239,546.04
  5. Step 5: Solve for x
    x = 1,310,239,546.04/43,678.54
  6. Step 6: Final answer
    x = 29,997.33

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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.