Home / 20,235.38-30,332.57-8,372.77

Finding the Fourth Proportional to 20,235.38, 30,332.57 and 8,372.77

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Solution

The fourth proportional to 20,235.38, 30,332.57 and 8,372.77 is: 12,550.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,235.38 : 30,332.57 = 8,372.77 : x
  2. Step 2: Convert to fraction form
    20,235.38/30,332.57 = 8,372.77/x
  3. Step 3: Cross multiply
    20,235.38x = 30,332.57 × 8,372.77
  4. Step 4: Simplify right side
    20,235.38x = 253,967,514.42
  5. Step 5: Solve for x
    x = 253,967,514.42/20,235.38
  6. Step 6: Final answer
    x = 12,550.67

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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.