Home / 38,936.40-58,337.40-18,117.20

Finding the Fourth Proportional to 38,936.40, 58,337.40 and 18,117.20

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Solution

The fourth proportional to 38,936.40, 58,337.40 and 18,117.20 is: 27,144.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,936.40 : 58,337.40 = 18,117.20 : x
  2. Step 2: Convert to fraction form
    38,936.40/58,337.40 = 18,117.20/x
  3. Step 3: Cross multiply
    38,936.40x = 58,337.40 × 18,117.20
  4. Step 4: Simplify right side
    38,936.40x = 1,056,910,343.28
  5. Step 5: Solve for x
    x = 1,056,910,343.28/38,936.40
  6. Step 6: Final answer
    x = 27,144.53

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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.