Home / 28,263.60-39,004.24-15,517.96

Finding the Fourth Proportional to 28,263.60, 39,004.24 and 15,517.96

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Solution

The fourth proportional to 28,263.60, 39,004.24 and 15,517.96 is: 21,415.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,263.60 : 39,004.24 = 15,517.96 : x
  2. Step 2: Convert to fraction form
    28,263.60/39,004.24 = 15,517.96/x
  3. Step 3: Cross multiply
    28,263.60x = 39,004.24 × 15,517.96
  4. Step 4: Simplify right side
    28,263.60x = 605,266,236.15
  5. Step 5: Solve for x
    x = 605,266,236.15/28,263.60
  6. Step 6: Final answer
    x = 21,415.04

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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.