Home / 20,670.27-31,007.57-8,825.23

Finding the Fourth Proportional to 20,670.27, 31,007.57 and 8,825.23

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Solution

The fourth proportional to 20,670.27, 31,007.57 and 8,825.23 is: 13,238.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,670.27 : 31,007.57 = 8,825.23 : x
  2. Step 2: Convert to fraction form
    20,670.27/31,007.57 = 8,825.23/x
  3. Step 3: Cross multiply
    20,670.27x = 31,007.57 × 8,825.23
  4. Step 4: Simplify right side
    20,670.27x = 273,648,936.99
  5. Step 5: Solve for x
    x = 273,648,936.99/20,670.27
  6. Step 6: Final answer
    x = 13,238.77

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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.