Home / 25,186.11-34,756.89-13,856.76

Finding the Fourth Proportional to 25,186.11, 34,756.89 and 13,856.76

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Solution

The fourth proportional to 25,186.11, 34,756.89 and 13,856.76 is: 19,122.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,186.11 : 34,756.89 = 13,856.76 : x
  2. Step 2: Convert to fraction form
    25,186.11/34,756.89 = 13,856.76/x
  3. Step 3: Cross multiply
    25,186.11x = 34,756.89 × 13,856.76
  4. Step 4: Simplify right side
    25,186.11x = 481,617,709.29
  5. Step 5: Solve for x
    x = 481,617,709.29/25,186.11
  6. Step 6: Final answer
    x = 19,122.36

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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.