Home / 30,242.70-45,313.25-15,229.86

Finding the Fourth Proportional to 30,242.70, 45,313.25 and 15,229.86

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Solution

The fourth proportional to 30,242.70, 45,313.25 and 15,229.86 is: 22,819.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,242.70 : 45,313.25 = 15,229.86 : x
  2. Step 2: Convert to fraction form
    30,242.70/45,313.25 = 15,229.86/x
  3. Step 3: Cross multiply
    30,242.70x = 45,313.25 × 15,229.86
  4. Step 4: Simplify right side
    30,242.70x = 690,114,377.50
  5. Step 5: Solve for x
    x = 690,114,377.50/30,242.70
  6. Step 6: Final answer
    x = 22,819.21

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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.