Home / 21,104.37-29,122.85-11,542.35

Finding the Fourth Proportional to 21,104.37, 29,122.85 and 11,542.35

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Solution

The fourth proportional to 21,104.37, 29,122.85 and 11,542.35 is: 15,927.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,104.37 : 29,122.85 = 11,542.35 : x
  2. Step 2: Convert to fraction form
    21,104.37/29,122.85 = 11,542.35/x
  3. Step 3: Cross multiply
    21,104.37x = 29,122.85 × 11,542.35
  4. Step 4: Simplify right side
    21,104.37x = 336,146,127.70
  5. Step 5: Solve for x
    x = 336,146,127.70/21,104.37
  6. Step 6: Final answer
    x = 15,927.80

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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.