Home / 30,327.31-45,484.69-8,135.41

Finding the Fourth Proportional to 30,327.31, 45,484.69 and 8,135.41

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Solution

The fourth proportional to 30,327.31, 45,484.69 and 8,135.41 is: 12,201.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,327.31 : 45,484.69 = 8,135.41 : x
  2. Step 2: Convert to fraction form
    30,327.31/45,484.69 = 8,135.41/x
  3. Step 3: Cross multiply
    30,327.31x = 45,484.69 × 8,135.41
  4. Step 4: Simplify right side
    30,327.31x = 370,036,601.87
  5. Step 5: Solve for x
    x = 370,036,601.87/30,327.31
  6. Step 6: Final answer
    x = 12,201.43

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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.