Home / 21,175.27-31,762.09-10,089.61

Finding the Fourth Proportional to 21,175.27, 31,762.09 and 10,089.61

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Solution

The fourth proportional to 21,175.27, 31,762.09 and 10,089.61 is: 15,134.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,175.27 : 31,762.09 = 10,089.61 : x
  2. Step 2: Convert to fraction form
    21,175.27/31,762.09 = 10,089.61/x
  3. Step 3: Cross multiply
    21,175.27x = 31,762.09 × 10,089.61
  4. Step 4: Simplify right side
    21,175.27x = 320,467,100.88
  5. Step 5: Solve for x
    x = 320,467,100.88/21,175.27
  6. Step 6: Final answer
    x = 15,134.03

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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.