Home / 25,936.61-35,786.81-15,320.75

Finding the Fourth Proportional to 25,936.61, 35,786.81 and 15,320.75

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Solution

The fourth proportional to 25,936.61, 35,786.81 and 15,320.75 is: 21,139.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,936.61 : 35,786.81 = 15,320.75 : x
  2. Step 2: Convert to fraction form
    25,936.61/35,786.81 = 15,320.75/x
  3. Step 3: Cross multiply
    25,936.61x = 35,786.81 × 15,320.75
  4. Step 4: Simplify right side
    25,936.61x = 548,280,628.68
  5. Step 5: Solve for x
    x = 548,280,628.68/25,936.61
  6. Step 6: Final answer
    x = 21,139.26

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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.