Home / 20,767.06-31,161.83-9,671.07

Finding the Fourth Proportional to 20,767.06, 31,161.83 and 9,671.07

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Solution

The fourth proportional to 20,767.06, 31,161.83 and 9,671.07 is: 14,511.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,767.06 : 31,161.83 = 9,671.07 : x
  2. Step 2: Convert to fraction form
    20,767.06/31,161.83 = 9,671.07/x
  3. Step 3: Cross multiply
    20,767.06x = 31,161.83 × 9,671.07
  4. Step 4: Simplify right side
    20,767.06x = 301,368,239.26
  5. Step 5: Solve for x
    x = 301,368,239.26/20,767.06
  6. Step 6: Final answer
    x = 14,511.84

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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.