Home / 20,883.04-31,324.64-6,842.96

Finding the Fourth Proportional to 20,883.04, 31,324.64 and 6,842.96

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Solution

The fourth proportional to 20,883.04, 31,324.64 and 6,842.96 is: 10,264.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,883.04 : 31,324.64 = 6,842.96 : x
  2. Step 2: Convert to fraction form
    20,883.04/31,324.64 = 6,842.96/x
  3. Step 3: Cross multiply
    20,883.04x = 31,324.64 × 6,842.96
  4. Step 4: Simplify right side
    20,883.04x = 214,353,258.53
  5. Step 5: Solve for x
    x = 214,353,258.53/20,883.04
  6. Step 6: Final answer
    x = 10,264.47

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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.