Home / 25,859.12-35,687.66-15,107.45

Finding the Fourth Proportional to 25,859.12, 35,687.66 and 15,107.45

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Solution

The fourth proportional to 25,859.12, 35,687.66 and 15,107.45 is: 20,849.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,859.12 : 35,687.66 = 15,107.45 : x
  2. Step 2: Convert to fraction form
    25,859.12/35,687.66 = 15,107.45/x
  3. Step 3: Cross multiply
    25,859.12x = 35,687.66 × 15,107.45
  4. Step 4: Simplify right side
    25,859.12x = 539,149,539.07
  5. Step 5: Solve for x
    x = 539,149,539.07/25,859.12
  6. Step 6: Final answer
    x = 20,849.49

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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.