Home / 21,761.42-30,047.70-16,717.64

Finding the Fourth Proportional to 21,761.42, 30,047.70 and 16,717.64

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Solution

The fourth proportional to 21,761.42, 30,047.70 and 16,717.64 is: 23,083.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,761.42 : 30,047.70 = 16,717.64 : x
  2. Step 2: Convert to fraction form
    21,761.42/30,047.70 = 16,717.64/x
  3. Step 3: Cross multiply
    21,761.42x = 30,047.70 × 16,717.64
  4. Step 4: Simplify right side
    21,761.42x = 502,326,481.19
  5. Step 5: Solve for x
    x = 502,326,481.19/21,761.42
  6. Step 6: Final answer
    x = 23,083.36

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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.