Home / 21,250.58-29,326.45-11,689.98

Finding the Fourth Proportional to 21,250.58, 29,326.45 and 11,689.98

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Solution

The fourth proportional to 21,250.58, 29,326.45 and 11,689.98 is: 16,132.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,250.58 : 29,326.45 = 11,689.98 : x
  2. Step 2: Convert to fraction form
    21,250.58/29,326.45 = 11,689.98/x
  3. Step 3: Cross multiply
    21,250.58x = 29,326.45 × 11,689.98
  4. Step 4: Simplify right side
    21,250.58x = 342,825,613.97
  5. Step 5: Solve for x
    x = 342,825,613.97/21,250.58
  6. Step 6: Final answer
    x = 16,132.53

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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.