Home / 20,973.42-31,453.11-7,119.18

Finding the Fourth Proportional to 20,973.42, 31,453.11 and 7,119.18

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Solution

The fourth proportional to 20,973.42, 31,453.11 and 7,119.18 is: 10,676.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,973.42 : 31,453.11 = 7,119.18 : x
  2. Step 2: Convert to fraction form
    20,973.42/31,453.11 = 7,119.18/x
  3. Step 3: Cross multiply
    20,973.42x = 31,453.11 × 7,119.18
  4. Step 4: Simplify right side
    20,973.42x = 223,920,351.65
  5. Step 5: Solve for x
    x = 223,920,351.65/20,973.42
  6. Step 6: Final answer
    x = 10,676.39

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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.