Home / 30,401.60-45,591.44-12,872.64

Finding the Fourth Proportional to 30,401.60, 45,591.44 and 12,872.64

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Solution

The fourth proportional to 30,401.60, 45,591.44 and 12,872.64 is: 19,304.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,401.60 : 45,591.44 = 12,872.64 : x
  2. Step 2: Convert to fraction form
    30,401.60/45,591.44 = 12,872.64/x
  3. Step 3: Cross multiply
    30,401.60x = 45,591.44 × 12,872.64
  4. Step 4: Simplify right side
    30,401.60x = 586,882,194.20
  5. Step 5: Solve for x
    x = 586,882,194.20/30,401.60
  6. Step 6: Final answer
    x = 19,304.32

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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.