Home / 20,927.89-31,396.44-6,892.24

Finding the Fourth Proportional to 20,927.89, 31,396.44 and 6,892.24

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Solution

The fourth proportional to 20,927.89, 31,396.44 and 6,892.24 is: 10,339.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,927.89 : 31,396.44 = 6,892.24 : x
  2. Step 2: Convert to fraction form
    20,927.89/31,396.44 = 6,892.24/x
  3. Step 3: Cross multiply
    20,927.89x = 31,396.44 × 6,892.24
  4. Step 4: Simplify right side
    20,927.89x = 216,391,799.63
  5. Step 5: Solve for x
    x = 216,391,799.63/20,927.89
  6. Step 6: Final answer
    x = 10,339.88

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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.