Home / 25,278.21-34,883.87-13,947.80

Finding the Fourth Proportional to 25,278.21, 34,883.87 and 13,947.80

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Solution

The fourth proportional to 25,278.21, 34,883.87 and 13,947.80 is: 19,247.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,278.21 : 34,883.87 = 13,947.80 : x
  2. Step 2: Convert to fraction form
    25,278.21/34,883.87 = 13,947.80/x
  3. Step 3: Cross multiply
    25,278.21x = 34,883.87 × 13,947.80
  4. Step 4: Simplify right side
    25,278.21x = 486,552,997.83
  5. Step 5: Solve for x
    x = 486,552,997.83/25,278.21
  6. Step 6: Final answer
    x = 19,247.92

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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.