Home / 21,735.07-29,995.51-12,174.38

Finding the Fourth Proportional to 21,735.07, 29,995.51 and 12,174.38

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Solution

The fourth proportional to 21,735.07, 29,995.51 and 12,174.38 is: 16,801.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,735.07 : 29,995.51 = 12,174.38 : x
  2. Step 2: Convert to fraction form
    21,735.07/29,995.51 = 12,174.38/x
  3. Step 3: Cross multiply
    21,735.07x = 29,995.51 × 12,174.38
  4. Step 4: Simplify right side
    21,735.07x = 365,176,751.15
  5. Step 5: Solve for x
    x = 365,176,751.15/21,735.07
  6. Step 6: Final answer
    x = 16,801.27

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1.5x scale

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.