Home / 28,525.44-39,364.20-20,039.88

Finding the Fourth Proportional to 28,525.44, 39,364.20 and 20,039.88

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Solution

The fourth proportional to 28,525.44, 39,364.20 and 20,039.88 is: 27,654.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,525.44 : 39,364.20 = 20,039.88 : x
  2. Step 2: Convert to fraction form
    28,525.44/39,364.20 = 20,039.88/x
  3. Step 3: Cross multiply
    28,525.44x = 39,364.20 × 20,039.88
  4. Step 4: Simplify right side
    28,525.44x = 788,853,844.30
  5. Step 5: Solve for x
    x = 788,853,844.30/28,525.44
  6. Step 6: Final answer
    x = 27,654.40

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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.