Home / 20,765.41-31,144.74-5,970.97

Finding the Fourth Proportional to 20,765.41, 31,144.74 and 5,970.97

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Solution

The fourth proportional to 20,765.41, 31,144.74 and 5,970.97 is: 8,955.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,765.41 : 31,144.74 = 5,970.97 : x
  2. Step 2: Convert to fraction form
    20,765.41/31,144.74 = 5,970.97/x
  3. Step 3: Cross multiply
    20,765.41x = 31,144.74 × 5,970.97
  4. Step 4: Simplify right side
    20,765.41x = 185,964,308.20
  5. Step 5: Solve for x
    x = 185,964,308.20/20,765.41
  6. Step 6: Final answer
    x = 8,955.48

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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.