Home / 21,189.06-31,771.28-8,034.26

Finding the Fourth Proportional to 21,189.06, 31,771.28 and 8,034.26

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Solution

The fourth proportional to 21,189.06, 31,771.28 and 8,034.26 is: 12,046.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,189.06 : 31,771.28 = 8,034.26 : x
  2. Step 2: Convert to fraction form
    21,189.06/31,771.28 = 8,034.26/x
  3. Step 3: Cross multiply
    21,189.06x = 31,771.28 × 8,034.26
  4. Step 4: Simplify right side
    21,189.06x = 255,258,585.28
  5. Step 5: Solve for x
    x = 255,258,585.28/21,189.06
  6. Step 6: Final answer
    x = 12,046.72

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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.