Home / 38,870.46-58,299.44-13,905.86

Finding the Fourth Proportional to 38,870.46, 58,299.44 and 13,905.86

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Solution

The fourth proportional to 38,870.46, 58,299.44 and 13,905.86 is: 20,856.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,870.46 : 58,299.44 = 13,905.86 : x
  2. Step 2: Convert to fraction form
    38,870.46/58,299.44 = 13,905.86/x
  3. Step 3: Cross multiply
    38,870.46x = 58,299.44 × 13,905.86
  4. Step 4: Simplify right side
    38,870.46x = 810,703,850.72
  5. Step 5: Solve for x
    x = 810,703,850.72/38,870.46
  6. Step 6: Final answer
    x = 20,856.55

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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.