Home / 20,669.54-31,004.43-5,087.06

Finding the Fourth Proportional to 20,669.54, 31,004.43 and 5,087.06

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Solution

The fourth proportional to 20,669.54, 31,004.43 and 5,087.06 is: 7,630.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,669.54 : 31,004.43 = 5,087.06 : x
  2. Step 2: Convert to fraction form
    20,669.54/31,004.43 = 5,087.06/x
  3. Step 3: Cross multiply
    20,669.54x = 31,004.43 × 5,087.06
  4. Step 4: Simplify right side
    20,669.54x = 157,721,395.68
  5. Step 5: Solve for x
    x = 157,721,395.68/20,669.54
  6. Step 6: Final answer
    x = 7,630.62

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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.