Home / 30,250.81-45,378.38-8,064.07

Finding the Fourth Proportional to 30,250.81, 45,378.38 and 8,064.07

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Solution

The fourth proportional to 30,250.81, 45,378.38 and 8,064.07 is: 12,096.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,250.81 : 45,378.38 = 8,064.07 : x
  2. Step 2: Convert to fraction form
    30,250.81/45,378.38 = 8,064.07/x
  3. Step 3: Cross multiply
    30,250.81x = 45,378.38 × 8,064.07
  4. Step 4: Simplify right side
    30,250.81x = 365,934,392.49
  5. Step 5: Solve for x
    x = 365,934,392.49/30,250.81
  6. Step 6: Final answer
    x = 12,096.68

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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.