Home / 20,107.60-30,167.48-6,256.72

Finding the Fourth Proportional to 20,107.60, 30,167.48 and 6,256.72

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Solution

The fourth proportional to 20,107.60, 30,167.48 and 6,256.72 is: 9,386.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,107.60 : 30,167.48 = 6,256.72 : x
  2. Step 2: Convert to fraction form
    20,107.60/30,167.48 = 6,256.72/x
  3. Step 3: Cross multiply
    20,107.60x = 30,167.48 × 6,256.72
  4. Step 4: Simplify right side
    20,107.60x = 188,749,475.47
  5. Step 5: Solve for x
    x = 188,749,475.47/20,107.60
  6. Step 6: Final answer
    x = 9,386.97

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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.