Home / 26,990.30-40,475.85-12,206.30

Finding the Fourth Proportional to 26,990.30, 40,475.85 and 12,206.30

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Solution

The fourth proportional to 26,990.30, 40,475.85 and 12,206.30 is: 18,305.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,990.30 : 40,475.85 = 12,206.30 : x
  2. Step 2: Convert to fraction form
    26,990.30/40,475.85 = 12,206.30/x
  3. Step 3: Cross multiply
    26,990.30x = 40,475.85 × 12,206.30
  4. Step 4: Simplify right side
    26,990.30x = 494,060,367.86
  5. Step 5: Solve for x
    x = 494,060,367.86/26,990.30
  6. Step 6: Final answer
    x = 18,305.11

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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.