Home / 20,986.89-31,483.76-6,197.30

Finding the Fourth Proportional to 20,986.89, 31,483.76 and 6,197.30

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Solution

The fourth proportional to 20,986.89, 31,483.76 and 6,197.30 is: 9,296.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,986.89 : 31,483.76 = 6,197.30 : x
  2. Step 2: Convert to fraction form
    20,986.89/31,483.76 = 6,197.30/x
  3. Step 3: Cross multiply
    20,986.89x = 31,483.76 × 6,197.30
  4. Step 4: Simplify right side
    20,986.89x = 195,114,412.60
  5. Step 5: Solve for x
    x = 195,114,412.60/20,986.89
  6. Step 6: Final answer
    x = 9,296.97

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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.