Home / 25,789.14-35,578.36-15,713.90

Finding the Fourth Proportional to 25,789.14, 35,578.36 and 15,713.90

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Solution

The fourth proportional to 25,789.14, 35,578.36 and 15,713.90 is: 21,678.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,789.14 : 35,578.36 = 15,713.90 : x
  2. Step 2: Convert to fraction form
    25,789.14/35,578.36 = 15,713.90/x
  3. Step 3: Cross multiply
    25,789.14x = 35,578.36 × 15,713.90
  4. Step 4: Simplify right side
    25,789.14x = 559,074,791.20
  5. Step 5: Solve for x
    x = 559,074,791.20/25,789.14
  6. Step 6: Final answer
    x = 21,678.69

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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.