Home / 20,962.41-31,452.03-7,636.34

Finding the Fourth Proportional to 20,962.41, 31,452.03 and 7,636.34

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Solution

The fourth proportional to 20,962.41, 31,452.03 and 7,636.34 is: 11,457.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,962.41 : 31,452.03 = 7,636.34 : x
  2. Step 2: Convert to fraction form
    20,962.41/31,452.03 = 7,636.34/x
  3. Step 3: Cross multiply
    20,962.41x = 31,452.03 × 7,636.34
  4. Step 4: Simplify right side
    20,962.41x = 240,178,473.40
  5. Step 5: Solve for x
    x = 240,178,473.40/20,962.41
  6. Step 6: Final answer
    x = 11,457.58

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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.