Home / 20,486.32-30,748.61-10,632.52

Finding the Fourth Proportional to 20,486.32, 30,748.61 and 10,632.52

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Solution

The fourth proportional to 20,486.32, 30,748.61 and 10,632.52 is: 15,958.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,486.32 : 30,748.61 = 10,632.52 : x
  2. Step 2: Convert to fraction form
    20,486.32/30,748.61 = 10,632.52/x
  3. Step 3: Cross multiply
    20,486.32x = 30,748.61 × 10,632.52
  4. Step 4: Simplify right side
    20,486.32x = 326,935,102.85
  5. Step 5: Solve for x
    x = 326,935,102.85/20,486.32
  6. Step 6: Final answer
    x = 15,958.71

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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.