Home / 20,885.23-31,334.33-6,845.38

Finding the Fourth Proportional to 20,885.23, 31,334.33 and 6,845.38

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Solution

The fourth proportional to 20,885.23, 31,334.33 and 6,845.38 is: 10,270.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,885.23 : 31,334.33 = 6,845.38 : x
  2. Step 2: Convert to fraction form
    20,885.23/31,334.33 = 6,845.38/x
  3. Step 3: Cross multiply
    20,885.23x = 31,334.33 × 6,845.38
  4. Step 4: Simplify right side
    20,885.23x = 214,495,239.22
  5. Step 5: Solve for x
    x = 214,495,239.22/20,885.23
  6. Step 6: Final answer
    x = 10,270.19

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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.