Home / 21,079.44-29,092.32-12,124.08

Finding the Fourth Proportional to 21,079.44, 29,092.32 and 12,124.08

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Solution

The fourth proportional to 21,079.44, 29,092.32 and 12,124.08 is: 16,732.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,079.44 : 29,092.32 = 12,124.08 : x
  2. Step 2: Convert to fraction form
    21,079.44/29,092.32 = 12,124.08/x
  3. Step 3: Cross multiply
    21,079.44x = 29,092.32 × 12,124.08
  4. Step 4: Simplify right side
    21,079.44x = 352,717,615.07
  5. Step 5: Solve for x
    x = 352,717,615.07/21,079.44
  6. Step 6: Final answer
    x = 16,732.78

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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.