Home / 39,157.10-58,741.79-12,855.86

Finding the Fourth Proportional to 39,157.10, 58,741.79 and 12,855.86

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Solution

The fourth proportional to 39,157.10, 58,741.79 and 12,855.86 is: 19,285.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,157.10 : 58,741.79 = 12,855.86 : x
  2. Step 2: Convert to fraction form
    39,157.10/58,741.79 = 12,855.86/x
  3. Step 3: Cross multiply
    39,157.10x = 58,741.79 × 12,855.86
  4. Step 4: Simplify right side
    39,157.10x = 755,176,228.39
  5. Step 5: Solve for x
    x = 755,176,228.39/39,157.10
  6. Step 6: Final answer
    x = 19,285.81

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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.