Home / 29,435.60-40,620.32-16,861.12

Finding the Fourth Proportional to 29,435.60, 40,620.32 and 16,861.12

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Solution

The fourth proportional to 29,435.60, 40,620.32 and 16,861.12 is: 23,267.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,435.60 : 40,620.32 = 16,861.12 : x
  2. Step 2: Convert to fraction form
    29,435.60/40,620.32 = 16,861.12/x
  3. Step 3: Cross multiply
    29,435.60x = 40,620.32 × 16,861.12
  4. Step 4: Simplify right side
    29,435.60x = 684,904,089.96
  5. Step 5: Solve for x
    x = 684,904,089.96/29,435.60
  6. Step 6: Final answer
    x = 23,267.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.