Home / 20,644.08-30,966-14,053.92

Finding the Fourth Proportional to 20,644.08, 30,966 and 14,053.92

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Solution

The fourth proportional to 20,644.08, 30,966 and 14,053.92 is: 21,080.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,644.08 : 30,966 = 14,053.92 : x
  2. Step 2: Convert to fraction form
    20,644.08/30,966 = 14,053.92/x
  3. Step 3: Cross multiply
    20,644.08x = 30,966 × 14,053.92
  4. Step 4: Simplify right side
    20,644.08x = 435,193,686.72
  5. Step 5: Solve for x
    x = 435,193,686.72/20,644.08
  6. Step 6: Final answer
    x = 21,080.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.