Home / 21,347.54-29,460.08-11,787.41

Finding the Fourth Proportional to 21,347.54, 29,460.08 and 11,787.41

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Solution

The fourth proportional to 21,347.54, 29,460.08 and 11,787.41 is: 16,266.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,347.54 : 29,460.08 = 11,787.41 : x
  2. Step 2: Convert to fraction form
    21,347.54/29,460.08 = 11,787.41/x
  3. Step 3: Cross multiply
    21,347.54x = 29,460.08 × 11,787.41
  4. Step 4: Simplify right side
    21,347.54x = 347,257,879.56
  5. Step 5: Solve for x
    x = 347,257,879.56/21,347.54
  6. Step 6: Final answer
    x = 16,266.88

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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.