Home / 42,659.64-63,999.54-19,286.04

Finding the Fourth Proportional to 42,659.64, 63,999.54 and 19,286.04

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Solution

The fourth proportional to 42,659.64, 63,999.54 and 19,286.04 is: 28,933.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,659.64 : 63,999.54 = 19,286.04 : x
  2. Step 2: Convert to fraction form
    42,659.64/63,999.54 = 19,286.04/x
  3. Step 3: Cross multiply
    42,659.64x = 63,999.54 × 19,286.04
  4. Step 4: Simplify right side
    42,659.64x = 1,234,297,688.42
  5. Step 5: Solve for x
    x = 1,234,297,688.42/42,659.64
  6. Step 6: Final answer
    x = 28,933.62

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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.