Home / 20,304.10-28,028.30-12,348.88

Finding the Fourth Proportional to 20,304.10, 28,028.30 and 12,348.88

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Solution

The fourth proportional to 20,304.10, 28,028.30 and 12,348.88 is: 17,046.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,304.10 : 28,028.30 = 12,348.88 : x
  2. Step 2: Convert to fraction form
    20,304.10/28,028.30 = 12,348.88/x
  3. Step 3: Cross multiply
    20,304.10x = 28,028.30 × 12,348.88
  4. Step 4: Simplify right side
    20,304.10x = 346,118,051.56
  5. Step 5: Solve for x
    x = 346,118,051.56/20,304.10
  6. Step 6: Final answer
    x = 17,046.71

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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.