Home / 21,096.72-31,651.68-6,306.24

Finding the Fourth Proportional to 21,096.72, 31,651.68 and 6,306.24

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Solution

The fourth proportional to 21,096.72, 31,651.68 and 6,306.24 is: 9,461.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,096.72 : 31,651.68 = 6,306.24 : x
  2. Step 2: Convert to fraction form
    21,096.72/31,651.68 = 6,306.24/x
  3. Step 3: Cross multiply
    21,096.72x = 31,651.68 × 6,306.24
  4. Step 4: Simplify right side
    21,096.72x = 199,603,090.48
  5. Step 5: Solve for x
    x = 199,603,090.48/21,096.72
  6. Step 6: Final answer
    x = 9,461.33

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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.