Home / 25,856.01-35,697.78-20,180.75

Finding the Fourth Proportional to 25,856.01, 35,697.78 and 20,180.75

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Solution

The fourth proportional to 25,856.01, 35,697.78 and 20,180.75 is: 27,862.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,856.01 : 35,697.78 = 20,180.75 : x
  2. Step 2: Convert to fraction form
    25,856.01/35,697.78 = 20,180.75/x
  3. Step 3: Cross multiply
    25,856.01x = 35,697.78 × 20,180.75
  4. Step 4: Simplify right side
    25,856.01x = 720,407,795.25
  5. Step 5: Solve for x
    x = 720,407,795.25/25,856.01
  6. Step 6: Final answer
    x = 27,862.30

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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.