Home / 20,736.06-31,104.81-8,262.06

Finding the Fourth Proportional to 20,736.06, 31,104.81 and 8,262.06

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Solution

The fourth proportional to 20,736.06, 31,104.81 and 8,262.06 is: 12,393.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736.06 : 31,104.81 = 8,262.06 : x
  2. Step 2: Convert to fraction form
    20,736.06/31,104.81 = 8,262.06/x
  3. Step 3: Cross multiply
    20,736.06x = 31,104.81 × 8,262.06
  4. Step 4: Simplify right side
    20,736.06x = 256,989,806.51
  5. Step 5: Solve for x
    x = 256,989,806.51/20,736.06
  6. Step 6: Final answer
    x = 12,393.38

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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.