Home / 26,904.30-40,330.85-20,977.90

Finding the Fourth Proportional to 26,904.30, 40,330.85 and 20,977.90

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Solution

The fourth proportional to 26,904.30, 40,330.85 and 20,977.90 is: 31,446.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,904.30 : 40,330.85 = 20,977.90 : x
  2. Step 2: Convert to fraction form
    26,904.30/40,330.85 = 20,977.90/x
  3. Step 3: Cross multiply
    26,904.30x = 40,330.85 × 20,977.90
  4. Step 4: Simplify right side
    26,904.30x = 846,056,538.22
  5. Step 5: Solve for x
    x = 846,056,538.22/26,904.30
  6. Step 6: Final answer
    x = 31,446.89

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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.