Home / 14,070.12-21,105.27-3,540.12

Finding the Fourth Proportional to 14,070.12, 21,105.27 and 3,540.12

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Solution

The fourth proportional to 14,070.12, 21,105.27 and 3,540.12 is: 5,310.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,070.12 : 21,105.27 = 3,540.12 : x
  2. Step 2: Convert to fraction form
    14,070.12/21,105.27 = 3,540.12/x
  3. Step 3: Cross multiply
    14,070.12x = 21,105.27 × 3,540.12
  4. Step 4: Simplify right side
    14,070.12x = 74,715,188.43
  5. Step 5: Solve for x
    x = 74,715,188.43/14,070.12
  6. Step 6: Final answer
    x = 5,310.20

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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.