Home / 38,108.70-57,142.43-30,261.70

Finding the Fourth Proportional to 38,108.70, 57,142.43 and 30,261.70

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Solution

The fourth proportional to 38,108.70, 57,142.43 and 30,261.70 is: 45,376.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,108.70 : 57,142.43 = 30,261.70 : x
  2. Step 2: Convert to fraction form
    38,108.70/57,142.43 = 30,261.70/x
  3. Step 3: Cross multiply
    38,108.70x = 57,142.43 × 30,261.70
  4. Step 4: Simplify right side
    38,108.70x = 1,729,226,893.25
  5. Step 5: Solve for x
    x = 1,729,226,893.25/38,108.70
  6. Step 6: Final answer
    x = 45,376.17

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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.