Home / 38,289.99-57,434.95-11,996.78

Finding the Fourth Proportional to 38,289.99, 57,434.95 and 11,996.78

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Solution

The fourth proportional to 38,289.99, 57,434.95 and 11,996.78 is: 17,995.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,289.99 : 57,434.95 = 11,996.78 : x
  2. Step 2: Convert to fraction form
    38,289.99/57,434.95 = 11,996.78/x
  3. Step 3: Cross multiply
    38,289.99x = 57,434.95 × 11,996.78
  4. Step 4: Simplify right side
    38,289.99x = 689,034,618.04
  5. Step 5: Solve for x
    x = 689,034,618.04/38,289.99
  6. Step 6: Final answer
    x = 17,995.16

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Similar ratio
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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.