Home / 20,713.50-31,071.60-5,923.62

Finding the Fourth Proportional to 20,713.50, 31,071.60 and 5,923.62

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Solution

The fourth proportional to 20,713.50, 31,071.60 and 5,923.62 is: 8,885.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,713.50 : 31,071.60 = 5,923.62 : x
  2. Step 2: Convert to fraction form
    20,713.50/31,071.60 = 5,923.62/x
  3. Step 3: Cross multiply
    20,713.50x = 31,071.60 × 5,923.62
  4. Step 4: Simplify right side
    20,713.50x = 184,056,351.19
  5. Step 5: Solve for x
    x = 184,056,351.19/20,713.50
  6. Step 6: Final answer
    x = 8,885.82

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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.