Home / 20,804.74-31,219.44-7,666.34

Finding the Fourth Proportional to 20,804.74, 31,219.44 and 7,666.34

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Solution

The fourth proportional to 20,804.74, 31,219.44 and 7,666.34 is: 11,504.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,804.74 : 31,219.44 = 7,666.34 : x
  2. Step 2: Convert to fraction form
    20,804.74/31,219.44 = 7,666.34/x
  3. Step 3: Cross multiply
    20,804.74x = 31,219.44 × 7,666.34
  4. Step 4: Simplify right side
    20,804.74x = 239,338,841.65
  5. Step 5: Solve for x
    x = 239,338,841.65/20,804.74
  6. Step 6: Final answer
    x = 11,504.05

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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.