Home / 20,337.12-28,063.86-11,261.84

Finding the Fourth Proportional to 20,337.12, 28,063.86 and 11,261.84

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Solution

The fourth proportional to 20,337.12, 28,063.86 and 11,261.84 is: 15,540.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,337.12 : 28,063.86 = 11,261.84 : x
  2. Step 2: Convert to fraction form
    20,337.12/28,063.86 = 11,261.84/x
  3. Step 3: Cross multiply
    20,337.12x = 28,063.86 × 11,261.84
  4. Step 4: Simplify right side
    20,337.12x = 316,050,560.78
  5. Step 5: Solve for x
    x = 316,050,560.78/20,337.12
  6. Step 6: Final answer
    x = 15,540.58

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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.