Home / 30,745.56-42,438.27-18,001.73

Finding the Fourth Proportional to 30,745.56, 42,438.27 and 18,001.73

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Solution

The fourth proportional to 30,745.56, 42,438.27 and 18,001.73 is: 24,847.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,745.56 : 42,438.27 = 18,001.73 : x
  2. Step 2: Convert to fraction form
    30,745.56/42,438.27 = 18,001.73/x
  3. Step 3: Cross multiply
    30,745.56x = 42,438.27 × 18,001.73
  4. Step 4: Simplify right side
    30,745.56x = 763,962,066.02
  5. Step 5: Solve for x
    x = 763,962,066.02/30,745.56
  6. Step 6: Final answer
    x = 24,847.88

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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.