Home / 21,143.62-31,715.03-8,496.27

Finding the Fourth Proportional to 21,143.62, 31,715.03 and 8,496.27

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Solution

The fourth proportional to 21,143.62, 31,715.03 and 8,496.27 is: 12,744.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,143.62 : 31,715.03 = 8,496.27 : x
  2. Step 2: Convert to fraction form
    21,143.62/31,715.03 = 8,496.27/x
  3. Step 3: Cross multiply
    21,143.62x = 31,715.03 × 8,496.27
  4. Step 4: Simplify right side
    21,143.62x = 269,459,378.03
  5. Step 5: Solve for x
    x = 269,459,378.03/21,143.62
  6. Step 6: Final answer
    x = 12,744.24

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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.