Home / 27,190.38-37,539.53-18,128.49

Finding the Fourth Proportional to 27,190.38, 37,539.53 and 18,128.49

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Solution

The fourth proportional to 27,190.38, 37,539.53 and 18,128.49 is: 25,028.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,190.38 : 37,539.53 = 18,128.49 : x
  2. Step 2: Convert to fraction form
    27,190.38/37,539.53 = 18,128.49/x
  3. Step 3: Cross multiply
    27,190.38x = 37,539.53 × 18,128.49
  4. Step 4: Simplify right side
    27,190.38x = 680,534,903.57
  5. Step 5: Solve for x
    x = 680,534,903.57/27,190.38
  6. Step 6: Final answer
    x = 25,028.52

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.