Home / 30,220.38-45,331.71-11,496.91

Finding the Fourth Proportional to 30,220.38, 45,331.71 and 11,496.91

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Solution

The fourth proportional to 30,220.38, 45,331.71 and 11,496.91 is: 17,245.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,220.38 : 45,331.71 = 11,496.91 : x
  2. Step 2: Convert to fraction form
    30,220.38/45,331.71 = 11,496.91/x
  3. Step 3: Cross multiply
    30,220.38x = 45,331.71 × 11,496.91
  4. Step 4: Simplify right side
    30,220.38x = 521,174,590.02
  5. Step 5: Solve for x
    x = 521,174,590.02/30,220.38
  6. Step 6: Final answer
    x = 17,245.80

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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.