Home / 38,621.44-57,904.64-13,656.32

Finding the Fourth Proportional to 38,621.44, 57,904.64 and 13,656.32

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Solution

The fourth proportional to 38,621.44, 57,904.64 and 13,656.32 is: 20,474.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,621.44 : 57,904.64 = 13,656.32 : x
  2. Step 2: Convert to fraction form
    38,621.44/57,904.64 = 13,656.32/x
  3. Step 3: Cross multiply
    38,621.44x = 57,904.64 × 13,656.32
  4. Step 4: Simplify right side
    38,621.44x = 790,764,293.32
  5. Step 5: Solve for x
    x = 790,764,293.32/38,621.44
  6. Step 6: Final answer
    x = 20,474.75

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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.