Home / 25,919.36-35,767.68-15,171.20

Finding the Fourth Proportional to 25,919.36, 35,767.68 and 15,171.20

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Solution

The fourth proportional to 25,919.36, 35,767.68 and 15,171.20 is: 20,935.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,919.36 : 35,767.68 = 15,171.20 : x
  2. Step 2: Convert to fraction form
    25,919.36/35,767.68 = 15,171.20/x
  3. Step 3: Cross multiply
    25,919.36x = 35,767.68 × 15,171.20
  4. Step 4: Simplify right side
    25,919.36x = 542,638,626.82
  5. Step 5: Solve for x
    x = 542,638,626.82/25,919.36
  6. Step 6: Final answer
    x = 20,935.65

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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.