Home / 21,144.36-31,717.05-7,104.59

Finding the Fourth Proportional to 21,144.36, 31,717.05 and 7,104.59

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Solution

The fourth proportional to 21,144.36, 31,717.05 and 7,104.59 is: 10,657.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,144.36 : 31,717.05 = 7,104.59 : x
  2. Step 2: Convert to fraction form
    21,144.36/31,717.05 = 7,104.59/x
  3. Step 3: Cross multiply
    21,144.36x = 31,717.05 × 7,104.59
  4. Step 4: Simplify right side
    21,144.36x = 225,336,628.58
  5. Step 5: Solve for x
    x = 225,336,628.58/21,144.36
  6. Step 6: Final answer
    x = 10,657.06

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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.