Home / 25,856.82-35,686.27-15,791.05

Finding the Fourth Proportional to 25,856.82, 35,686.27 and 15,791.05

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Solution

The fourth proportional to 25,856.82, 35,686.27 and 15,791.05 is: 21,794.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,856.82 : 35,686.27 = 15,791.05 : x
  2. Step 2: Convert to fraction form
    25,856.82/35,686.27 = 15,791.05/x
  3. Step 3: Cross multiply
    25,856.82x = 35,686.27 × 15,791.05
  4. Step 4: Simplify right side
    25,856.82x = 563,523,738.23
  5. Step 5: Solve for x
    x = 563,523,738.23/25,856.82
  6. Step 6: Final answer
    x = 21,794.01

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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.