Home / 25,149.87-34,707.56-13,820.07

Finding the Fourth Proportional to 25,149.87, 34,707.56 and 13,820.07

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Solution

The fourth proportional to 25,149.87, 34,707.56 and 13,820.07 is: 19,072.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,149.87 : 34,707.56 = 13,820.07 : x
  2. Step 2: Convert to fraction form
    25,149.87/34,707.56 = 13,820.07/x
  3. Step 3: Cross multiply
    25,149.87x = 34,707.56 × 13,820.07
  4. Step 4: Simplify right side
    25,149.87x = 479,660,908.73
  5. Step 5: Solve for x
    x = 479,660,908.73/25,149.87
  6. Step 6: Final answer
    x = 19,072.10

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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.