Home / 18,785.15-25,923.55-10,171.43

Finding the Fourth Proportional to 18,785.15, 25,923.55 and 10,171.43

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Solution

The fourth proportional to 18,785.15, 25,923.55 and 10,171.43 is: 14,036.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,785.15 : 25,923.55 = 10,171.43 : x
  2. Step 2: Convert to fraction form
    18,785.15/25,923.55 = 10,171.43/x
  3. Step 3: Cross multiply
    18,785.15x = 25,923.55 × 10,171.43
  4. Step 4: Simplify right side
    18,785.15x = 263,679,574.18
  5. Step 5: Solve for x
    x = 263,679,574.18/18,785.15
  6. Step 6: Final answer
    x = 14,036.60

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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.