Home / 20,764.55-31,158.07-9,668.57

Finding the Fourth Proportional to 20,764.55, 31,158.07 and 9,668.57

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Solution

The fourth proportional to 20,764.55, 31,158.07 and 9,668.57 is: 14,508.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,764.55 : 31,158.07 = 9,668.57 : x
  2. Step 2: Convert to fraction form
    20,764.55/31,158.07 = 9,668.57/x
  3. Step 3: Cross multiply
    20,764.55x = 31,158.07 × 9,668.57
  4. Step 4: Simplify right side
    20,764.55x = 301,253,800.90
  5. Step 5: Solve for x
    x = 301,253,800.90/20,764.55
  6. Step 6: Final answer
    x = 14,508.08

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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.