Home / 18,439.36-25,445.64-10,055.68

Finding the Fourth Proportional to 18,439.36, 25,445.64 and 10,055.68

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Solution

The fourth proportional to 18,439.36, 25,445.64 and 10,055.68 is: 13,876.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,439.36 : 25,445.64 = 10,055.68 : x
  2. Step 2: Convert to fraction form
    18,439.36/25,445.64 = 10,055.68/x
  3. Step 3: Cross multiply
    18,439.36x = 25,445.64 × 10,055.68
  4. Step 4: Simplify right side
    18,439.36x = 255,873,213.24
  5. Step 5: Solve for x
    x = 255,873,213.24/18,439.36
  6. Step 6: Final answer
    x = 13,876.47

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