Home / 21,333.09-31,999.83-8,182.35

Finding the Fourth Proportional to 21,333.09, 31,999.83 and 8,182.35

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Solution

The fourth proportional to 21,333.09, 31,999.83 and 8,182.35 is: 12,273.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,333.09 : 31,999.83 = 8,182.35 : x
  2. Step 2: Convert to fraction form
    21,333.09/31,999.83 = 8,182.35/x
  3. Step 3: Cross multiply
    21,333.09x = 31,999.83 × 8,182.35
  4. Step 4: Simplify right side
    21,333.09x = 261,833,809.00
  5. Step 5: Solve for x
    x = 261,833,809.00/21,333.09
  6. Step 6: Final answer
    x = 12,273.60

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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.