Home / 21,200.58-29,255.65-11,768.53

Finding the Fourth Proportional to 21,200.58, 29,255.65 and 11,768.53

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Solution

The fourth proportional to 21,200.58, 29,255.65 and 11,768.53 is: 16,239.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,200.58 : 29,255.65 = 11,768.53 : x
  2. Step 2: Convert to fraction form
    21,200.58/29,255.65 = 11,768.53/x
  3. Step 3: Cross multiply
    21,200.58x = 29,255.65 × 11,768.53
  4. Step 4: Simplify right side
    21,200.58x = 344,296,045.97
  5. Step 5: Solve for x
    x = 344,296,045.97/21,200.58
  6. Step 6: Final answer
    x = 16,239.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.