Home / 25,390.56-35,027.94-15,313.40

Finding the Fourth Proportional to 25,390.56, 35,027.94 and 15,313.40

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Solution

The fourth proportional to 25,390.56, 35,027.94 and 15,313.40 is: 21,125.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,390.56 : 35,027.94 = 15,313.40 : x
  2. Step 2: Convert to fraction form
    25,390.56/35,027.94 = 15,313.40/x
  3. Step 3: Cross multiply
    25,390.56x = 35,027.94 × 15,313.40
  4. Step 4: Simplify right side
    25,390.56x = 536,397,067.07
  5. Step 5: Solve for x
    x = 536,397,067.07/25,390.56
  6. Step 6: Final answer
    x = 21,125.84

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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.