Home / 38,961.24-58,428.60-12,659.46

Finding the Fourth Proportional to 38,961.24, 58,428.60 and 12,659.46

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Solution

The fourth proportional to 38,961.24, 58,428.60 and 12,659.46 is: 18,984.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,961.24 : 58,428.60 = 12,659.46 : x
  2. Step 2: Convert to fraction form
    38,961.24/58,428.60 = 12,659.46/x
  3. Step 3: Cross multiply
    38,961.24x = 58,428.60 × 12,659.46
  4. Step 4: Simplify right side
    38,961.24x = 739,674,524.56
  5. Step 5: Solve for x
    x = 739,674,524.56/38,961.24
  6. Step 6: Final answer
    x = 18,984.88

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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.