Home / 28,383.76-42,531.84-17,973.64

Finding the Fourth Proportional to 28,383.76, 42,531.84 and 17,973.64

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Solution

The fourth proportional to 28,383.76, 42,531.84 and 17,973.64 is: 26,932.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,383.76 : 42,531.84 = 17,973.64 : x
  2. Step 2: Convert to fraction form
    28,383.76/42,531.84 = 17,973.64/x
  3. Step 3: Cross multiply
    28,383.76x = 42,531.84 × 17,973.64
  4. Step 4: Simplify right side
    28,383.76x = 764,451,980.70
  5. Step 5: Solve for x
    x = 764,451,980.70/28,383.76
  6. Step 6: Final answer
    x = 26,932.72

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1.5x scale

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.