Home / 20,892.40-31,336.92-9,796.24

Finding the Fourth Proportional to 20,892.40, 31,336.92 and 9,796.24

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Solution

The fourth proportional to 20,892.40, 31,336.92 and 9,796.24 is: 14,693.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,892.40 : 31,336.92 = 9,796.24 : x
  2. Step 2: Convert to fraction form
    20,892.40/31,336.92 = 9,796.24/x
  3. Step 3: Cross multiply
    20,892.40x = 31,336.92 × 9,796.24
  4. Step 4: Simplify right side
    20,892.40x = 306,983,989.18
  5. Step 5: Solve for x
    x = 306,983,989.18/20,892.40
  6. Step 6: Final answer
    x = 14,693.57

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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.