Home / 21,265.19-31,885.63-6,469.73

Finding the Fourth Proportional to 21,265.19, 31,885.63 and 6,469.73

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Solution

The fourth proportional to 21,265.19, 31,885.63 and 6,469.73 is: 9,700.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,265.19 : 31,885.63 = 6,469.73 : x
  2. Step 2: Convert to fraction form
    21,265.19/31,885.63 = 6,469.73/x
  3. Step 3: Cross multiply
    21,265.19x = 31,885.63 × 6,469.73
  4. Step 4: Simplify right side
    21,265.19x = 206,291,416.98
  5. Step 5: Solve for x
    x = 206,291,416.98/21,265.19
  6. Step 6: Final answer
    x = 9,700.90

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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.