Home / 28,284.60-42,405.30-17,188.92

Finding the Fourth Proportional to 28,284.60, 42,405.30 and 17,188.92

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Solution

The fourth proportional to 28,284.60, 42,405.30 and 17,188.92 is: 25,770.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,284.60 : 42,405.30 = 17,188.92 : x
  2. Step 2: Convert to fraction form
    28,284.60/42,405.30 = 17,188.92/x
  3. Step 3: Cross multiply
    28,284.60x = 42,405.30 × 17,188.92
  4. Step 4: Simplify right side
    28,284.60x = 728,901,309.28
  5. Step 5: Solve for x
    x = 728,901,309.28/28,284.60
  6. Step 6: Final answer
    x = 25,770.25

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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.