Home / 19,687.78-27,168.53-10,735.45

Finding the Fourth Proportional to 19,687.78, 27,168.53 and 10,735.45

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Solution

The fourth proportional to 19,687.78, 27,168.53 and 10,735.45 is: 14,814.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,687.78 : 27,168.53 = 10,735.45 : x
  2. Step 2: Convert to fraction form
    19,687.78/27,168.53 = 10,735.45/x
  3. Step 3: Cross multiply
    19,687.78x = 27,168.53 × 10,735.45
  4. Step 4: Simplify right side
    19,687.78x = 291,666,487.00
  5. Step 5: Solve for x
    x = 291,666,487.00/19,687.78
  6. Step 6: Final answer
    x = 14,814.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.