Home / 20,914.59-31,372.77-6,123.52

Finding the Fourth Proportional to 20,914.59, 31,372.77 and 6,123.52

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Solution

The fourth proportional to 20,914.59, 31,372.77 and 6,123.52 is: 9,185.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,914.59 : 31,372.77 = 6,123.52 : x
  2. Step 2: Convert to fraction form
    20,914.59/31,372.77 = 6,123.52/x
  3. Step 3: Cross multiply
    20,914.59x = 31,372.77 × 6,123.52
  4. Step 4: Simplify right side
    20,914.59x = 192,111,784.55
  5. Step 5: Solve for x
    x = 192,111,784.55/20,914.59
  6. Step 6: Final answer
    x = 9,185.54

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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.