Home / 21,081.44-29,092.56-12,703.52

Finding the Fourth Proportional to 21,081.44, 29,092.56 and 12,703.52

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Solution

The fourth proportional to 21,081.44, 29,092.56 and 12,703.52 is: 17,530.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,081.44 : 29,092.56 = 12,703.52 : x
  2. Step 2: Convert to fraction form
    21,081.44/29,092.56 = 12,703.52/x
  3. Step 3: Cross multiply
    21,081.44x = 29,092.56 × 12,703.52
  4. Step 4: Simplify right side
    21,081.44x = 369,577,917.81
  5. Step 5: Solve for x
    x = 369,577,917.81/21,081.44
  6. Step 6: Final answer
    x = 17,530.96

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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.