Home / 30,188.53-45,223.88-19,768.69

Finding the Fourth Proportional to 30,188.53, 45,223.88 and 19,768.69

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Solution

The fourth proportional to 30,188.53, 45,223.88 and 19,768.69 is: 29,614.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,188.53 : 45,223.88 = 19,768.69 : x
  2. Step 2: Convert to fraction form
    30,188.53/45,223.88 = 19,768.69/x
  3. Step 3: Cross multiply
    30,188.53x = 45,223.88 × 19,768.69
  4. Step 4: Simplify right side
    30,188.53x = 894,016,800.68
  5. Step 5: Solve for x
    x = 894,016,800.68/30,188.53
  6. Step 6: Final answer
    x = 29,614.46

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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.