Home / 20,700.89-31,054.44-9,608.72

Finding the Fourth Proportional to 20,700.89, 31,054.44 and 9,608.72

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Solution

The fourth proportional to 20,700.89, 31,054.44 and 9,608.72 is: 14,414.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,700.89 : 31,054.44 = 9,608.72 : x
  2. Step 2: Convert to fraction form
    20,700.89/31,054.44 = 9,608.72/x
  3. Step 3: Cross multiply
    20,700.89x = 31,054.44 × 9,608.72
  4. Step 4: Simplify right side
    20,700.89x = 298,393,418.72
  5. Step 5: Solve for x
    x = 298,393,418.72/20,700.89
  6. Step 6: Final answer
    x = 14,414.52

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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.