Home / 20,700.96-31,028.76-9,604.32

Finding the Fourth Proportional to 20,700.96, 31,028.76 and 9,604.32

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Solution

The fourth proportional to 20,700.96, 31,028.76 and 9,604.32 is: 14,395.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,700.96 : 31,028.76 = 9,604.32 : x
  2. Step 2: Convert to fraction form
    20,700.96/31,028.76 = 9,604.32/x
  3. Step 3: Cross multiply
    20,700.96x = 31,028.76 × 9,604.32
  4. Step 4: Simplify right side
    20,700.96x = 298,010,140.24
  5. Step 5: Solve for x
    x = 298,010,140.24/20,700.96
  6. Step 6: Final answer
    x = 14,395.96

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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.