Home / 21,101.94-31,652.91-5,519.43

Finding the Fourth Proportional to 21,101.94, 31,652.91 and 5,519.43

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Solution

The fourth proportional to 21,101.94, 31,652.91 and 5,519.43 is: 8,279.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,101.94 : 31,652.91 = 5,519.43 : x
  2. Step 2: Convert to fraction form
    21,101.94/31,652.91 = 5,519.43/x
  3. Step 3: Cross multiply
    21,101.94x = 31,652.91 × 5,519.43
  4. Step 4: Simplify right side
    21,101.94x = 174,706,021.04
  5. Step 5: Solve for x
    x = 174,706,021.04/21,101.94
  6. Step 6: Final answer
    x = 8,279.15

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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.