Home / 20,949.30-31,442.04-11,095.56

Finding the Fourth Proportional to 20,949.30, 31,442.04 and 11,095.56

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Solution

The fourth proportional to 20,949.30, 31,442.04 and 11,095.56 is: 16,652.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,949.30 : 31,442.04 = 11,095.56 : x
  2. Step 2: Convert to fraction form
    20,949.30/31,442.04 = 11,095.56/x
  3. Step 3: Cross multiply
    20,949.30x = 31,442.04 × 11,095.56
  4. Step 4: Simplify right side
    20,949.30x = 348,867,041.34
  5. Step 5: Solve for x
    x = 348,867,041.34/20,949.30
  6. Step 6: Final answer
    x = 16,652.92

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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.