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Finding the Fourth Proportional to 28,000.13, 41,999.11 and 6,940.22

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Solution

The fourth proportional to 28,000.13, 41,999.11 and 6,940.22 is: 10,410.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,000.13 : 41,999.11 = 6,940.22 : x
  2. Step 2: Convert to fraction form
    28,000.13/41,999.11 = 6,940.22/x
  3. Step 3: Cross multiply
    28,000.13x = 41,999.11 × 6,940.22
  4. Step 4: Simplify right side
    28,000.13x = 291,482,835.86
  5. Step 5: Solve for x
    x = 291,482,835.86/28,000.13
  6. Step 6: Final answer
    x = 10,410.05

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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.