Home / 21,085.27-31,633.09-14,857.44

Finding the Fourth Proportional to 21,085.27, 31,633.09 and 14,857.44

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Solution

The fourth proportional to 21,085.27, 31,633.09 and 14,857.44 is: 22,289.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,085.27 : 31,633.09 = 14,857.44 : x
  2. Step 2: Convert to fraction form
    21,085.27/31,633.09 = 14,857.44/x
  3. Step 3: Cross multiply
    21,085.27x = 31,633.09 × 14,857.44
  4. Step 4: Simplify right side
    21,085.27x = 469,986,736.69
  5. Step 5: Solve for x
    x = 469,986,736.69/21,085.27
  6. Step 6: Final answer
    x = 22,289.81

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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.