Home / 30,189.60-45,292.23-11,469.96

Finding the Fourth Proportional to 30,189.60, 45,292.23 and 11,469.96

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Solution

The fourth proportional to 30,189.60, 45,292.23 and 11,469.96 is: 17,207.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,189.60 : 45,292.23 = 11,469.96 : x
  2. Step 2: Convert to fraction form
    30,189.60/45,292.23 = 11,469.96/x
  3. Step 3: Cross multiply
    30,189.60x = 45,292.23 × 11,469.96
  4. Step 4: Simplify right side
    30,189.60x = 519,500,066.41
  5. Step 5: Solve for x
    x = 519,500,066.41/30,189.60
  6. Step 6: Final answer
    x = 17,207.91

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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.