Home / 20,748.26-31,118.12-5,953.90

Finding the Fourth Proportional to 20,748.26, 31,118.12 and 5,953.90

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Solution

The fourth proportional to 20,748.26, 31,118.12 and 5,953.90 is: 8,929.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,748.26 : 31,118.12 = 5,953.90 : x
  2. Step 2: Convert to fraction form
    20,748.26/31,118.12 = 5,953.90/x
  3. Step 3: Cross multiply
    20,748.26x = 31,118.12 × 5,953.90
  4. Step 4: Simplify right side
    20,748.26x = 185,274,174.67
  5. Step 5: Solve for x
    x = 185,274,174.67/20,748.26
  6. Step 6: Final answer
    x = 8,929.62

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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.