Home / 20,296.08-30,446.52-7,813.20

Finding the Fourth Proportional to 20,296.08, 30,446.52 and 7,813.20

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Solution

The fourth proportional to 20,296.08, 30,446.52 and 7,813.20 is: 11,720.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,296.08 : 30,446.52 = 7,813.20 : x
  2. Step 2: Convert to fraction form
    20,296.08/30,446.52 = 7,813.20/x
  3. Step 3: Cross multiply
    20,296.08x = 30,446.52 × 7,813.20
  4. Step 4: Simplify right side
    20,296.08x = 237,884,750.06
  5. Step 5: Solve for x
    x = 237,884,750.06/20,296.08
  6. Step 6: Final answer
    x = 11,720.72

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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.