Home / 20,293.30-28,004.22-11,340.88

Finding the Fourth Proportional to 20,293.30, 28,004.22 and 11,340.88

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Solution

The fourth proportional to 20,293.30, 28,004.22 and 11,340.88 is: 15,650.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,293.30 : 28,004.22 = 11,340.88 : x
  2. Step 2: Convert to fraction form
    20,293.30/28,004.22 = 11,340.88/x
  3. Step 3: Cross multiply
    20,293.30x = 28,004.22 × 11,340.88
  4. Step 4: Simplify right side
    20,293.30x = 317,592,428.50
  5. Step 5: Solve for x
    x = 317,592,428.50/20,293.30
  6. Step 6: Final answer
    x = 15,650.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.