Home / 25,403.82-35,057.28-13,918.69

Finding the Fourth Proportional to 25,403.82, 35,057.28 and 13,918.69

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Solution

The fourth proportional to 25,403.82, 35,057.28 and 13,918.69 is: 19,207.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,403.82 : 35,057.28 = 13,918.69 : x
  2. Step 2: Convert to fraction form
    25,403.82/35,057.28 = 13,918.69/x
  3. Step 3: Cross multiply
    25,403.82x = 35,057.28 × 13,918.69
  4. Step 4: Simplify right side
    25,403.82x = 487,951,412.56
  5. Step 5: Solve for x
    x = 487,951,412.56/25,403.82
  6. Step 6: Final answer
    x = 19,207.80

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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.