Home / 25,115.64-34,662.54-13,938.36

Finding the Fourth Proportional to 25,115.64, 34,662.54 and 13,938.36

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Solution

The fourth proportional to 25,115.64, 34,662.54 and 13,938.36 is: 19,236.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,115.64 : 34,662.54 = 13,938.36 : x
  2. Step 2: Convert to fraction form
    25,115.64/34,662.54 = 13,938.36/x
  3. Step 3: Cross multiply
    25,115.64x = 34,662.54 × 13,938.36
  4. Step 4: Simplify right side
    25,115.64x = 483,138,961.03
  5. Step 5: Solve for x
    x = 483,138,961.03/25,115.64
  6. Step 6: Final answer
    x = 19,236.58

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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.