Home / 21,342.15-29,451.26-11,910.63

Finding the Fourth Proportional to 21,342.15, 29,451.26 and 11,910.63

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Solution

The fourth proportional to 21,342.15, 29,451.26 and 11,910.63 is: 16,436.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,342.15 : 29,451.26 = 11,910.63 : x
  2. Step 2: Convert to fraction form
    21,342.15/29,451.26 = 11,910.63/x
  3. Step 3: Cross multiply
    21,342.15x = 29,451.26 × 11,910.63
  4. Step 4: Simplify right side
    21,342.15x = 350,783,001.34
  5. Step 5: Solve for x
    x = 350,783,001.34/21,342.15
  6. Step 6: Final answer
    x = 16,436.16

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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.