Home / 30,761.37-42,451.35-17,150.25

Finding the Fourth Proportional to 30,761.37, 42,451.35 and 17,150.25

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Solution

The fourth proportional to 30,761.37, 42,451.35 and 17,150.25 is: 23,667.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,761.37 : 42,451.35 = 17,150.25 : x
  2. Step 2: Convert to fraction form
    30,761.37/42,451.35 = 17,150.25/x
  3. Step 3: Cross multiply
    30,761.37x = 42,451.35 × 17,150.25
  4. Step 4: Simplify right side
    30,761.37x = 728,051,265.34
  5. Step 5: Solve for x
    x = 728,051,265.34/30,761.37
  6. Step 6: Final answer
    x = 23,667.71

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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.