Home / 30,354.21-45,520.38-12,825.41

Finding the Fourth Proportional to 30,354.21, 45,520.38 and 12,825.41

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Solution

The fourth proportional to 30,354.21, 45,520.38 and 12,825.41 is: 19,233.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,354.21 : 45,520.38 = 12,825.41 : x
  2. Step 2: Convert to fraction form
    30,354.21/45,520.38 = 12,825.41/x
  3. Step 3: Cross multiply
    30,354.21x = 45,520.38 × 12,825.41
  4. Step 4: Simplify right side
    30,354.21x = 583,817,309.25
  5. Step 5: Solve for x
    x = 583,817,309.25/30,354.21
  6. Step 6: Final answer
    x = 19,233.49

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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.