Home / 34,157.61-51,243.71-11,972.34

Finding the Fourth Proportional to 34,157.61, 51,243.71 and 11,972.34

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Solution

The fourth proportional to 34,157.61, 51,243.71 and 11,972.34 is: 17,961.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,157.61 : 51,243.71 = 11,972.34 : x
  2. Step 2: Convert to fraction form
    34,157.61/51,243.71 = 11,972.34/x
  3. Step 3: Cross multiply
    34,157.61x = 51,243.71 × 11,972.34
  4. Step 4: Simplify right side
    34,157.61x = 613,507,059.12
  5. Step 5: Solve for x
    x = 613,507,059.12/34,157.61
  6. Step 6: Final answer
    x = 17,961.07

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1.5x scale

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.