Home / 20,441.34-28,209.30-12,374.89

Finding the Fourth Proportional to 20,441.34, 28,209.30 and 12,374.89

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Solution

The fourth proportional to 20,441.34, 28,209.30 and 12,374.89 is: 17,077.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,441.34 : 28,209.30 = 12,374.89 : x
  2. Step 2: Convert to fraction form
    20,441.34/28,209.30 = 12,374.89/x
  3. Step 3: Cross multiply
    20,441.34x = 28,209.30 × 12,374.89
  4. Step 4: Simplify right side
    20,441.34x = 349,086,843.43
  5. Step 5: Solve for x
    x = 349,086,843.43/20,441.34
  6. Step 6: Final answer
    x = 17,077.49

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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.