Home / 21,220.56-31,843.80-10,833.12

Finding the Fourth Proportional to 21,220.56, 31,843.80 and 10,833.12

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Solution

The fourth proportional to 21,220.56, 31,843.80 and 10,833.12 is: 16,256.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,220.56 : 31,843.80 = 10,833.12 : x
  2. Step 2: Convert to fraction form
    21,220.56/31,843.80 = 10,833.12/x
  3. Step 3: Cross multiply
    21,220.56x = 31,843.80 × 10,833.12
  4. Step 4: Simplify right side
    21,220.56x = 344,967,706.66
  5. Step 5: Solve for x
    x = 344,967,706.66/21,220.56
  6. Step 6: Final answer
    x = 16,256.30

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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.