Home / 25,744.77-35,517.12-15,671.81

Finding the Fourth Proportional to 25,744.77, 35,517.12 and 15,671.81

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Solution

The fourth proportional to 25,744.77, 35,517.12 and 15,671.81 is: 21,620.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,744.77 : 35,517.12 = 15,671.81 : x
  2. Step 2: Convert to fraction form
    25,744.77/35,517.12 = 15,671.81/x
  3. Step 3: Cross multiply
    25,744.77x = 35,517.12 × 15,671.81
  4. Step 4: Simplify right side
    25,744.77x = 556,617,378.80
  5. Step 5: Solve for x
    x = 556,617,378.80/25,744.77
  6. Step 6: Final answer
    x = 21,620.60

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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.