Home / 20,217.68-30,330.88-9,835.28

Finding the Fourth Proportional to 20,217.68, 30,330.88 and 9,835.28

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Solution

The fourth proportional to 20,217.68, 30,330.88 and 9,835.28 is: 14,755.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,217.68 : 30,330.88 = 9,835.28 : x
  2. Step 2: Convert to fraction form
    20,217.68/30,330.88 = 9,835.28/x
  3. Step 3: Cross multiply
    20,217.68x = 30,330.88 × 9,835.28
  4. Step 4: Simplify right side
    20,217.68x = 298,312,697.45
  5. Step 5: Solve for x
    x = 298,312,697.45/20,217.68
  6. Step 6: Final answer
    x = 14,755.04

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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.