Home / 30,505.67-42,076.12-27,995.88

Finding the Fourth Proportional to 30,505.67, 42,076.12 and 27,995.88

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Solution

The fourth proportional to 30,505.67, 42,076.12 and 27,995.88 is: 38,614.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,505.67 : 42,076.12 = 27,995.88 : x
  2. Step 2: Convert to fraction form
    30,505.67/42,076.12 = 27,995.88/x
  3. Step 3: Cross multiply
    30,505.67x = 42,076.12 × 27,995.88
  4. Step 4: Simplify right side
    30,505.67x = 1,177,958,006.39
  5. Step 5: Solve for x
    x = 1,177,958,006.39/30,505.67
  6. Step 6: Final answer
    x = 38,614.40

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Half 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.