Home / 20,741.72-31,108.39-5,946.66

Finding the Fourth Proportional to 20,741.72, 31,108.39 and 5,946.66

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Solution

The fourth proportional to 20,741.72, 31,108.39 and 5,946.66 is: 8,918.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,741.72 : 31,108.39 = 5,946.66 : x
  2. Step 2: Convert to fraction form
    20,741.72/31,108.39 = 5,946.66/x
  3. Step 3: Cross multiply
    20,741.72x = 31,108.39 × 5,946.66
  4. Step 4: Simplify right side
    20,741.72x = 184,991,003.61
  5. Step 5: Solve for x
    x = 184,991,003.61/20,741.72
  6. Step 6: Final answer
    x = 8,918.79

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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.