Home / 30,401.28-45,608.92-9,624.78

Finding the Fourth Proportional to 30,401.28, 45,608.92 and 9,624.78

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Solution

The fourth proportional to 30,401.28, 45,608.92 and 9,624.78 is: 14,439.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,401.28 : 45,608.92 = 9,624.78 : x
  2. Step 2: Convert to fraction form
    30,401.28/45,608.92 = 9,624.78/x
  3. Step 3: Cross multiply
    30,401.28x = 45,608.92 × 9,624.78
  4. Step 4: Simplify right side
    30,401.28x = 438,975,821.04
  5. Step 5: Solve for x
    x = 438,975,821.04/30,401.28
  6. Step 6: Final answer
    x = 14,439.39

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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.