Home / 21,154.57-31,732.44-6,161.09

Finding the Fourth Proportional to 21,154.57, 31,732.44 and 6,161.09

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Solution

The fourth proportional to 21,154.57, 31,732.44 and 6,161.09 is: 9,241.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,154.57 : 31,732.44 = 6,161.09 : x
  2. Step 2: Convert to fraction form
    21,154.57/31,732.44 = 6,161.09/x
  3. Step 3: Cross multiply
    21,154.57x = 31,732.44 × 6,161.09
  4. Step 4: Simplify right side
    21,154.57x = 195,506,418.76
  5. Step 5: Solve for x
    x = 195,506,418.76/21,154.57
  6. Step 6: Final answer
    x = 9,241.81

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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.