Home / 18,142.31-27,164.26-15,900.64

Finding the Fourth Proportional to 18,142.31, 27,164.26 and 15,900.64

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Solution

The fourth proportional to 18,142.31, 27,164.26 and 15,900.64 is: 23,807.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,142.31 : 27,164.26 = 15,900.64 : x
  2. Step 2: Convert to fraction form
    18,142.31/27,164.26 = 15,900.64/x
  3. Step 3: Cross multiply
    18,142.31x = 27,164.26 × 15,900.64
  4. Step 4: Simplify right side
    18,142.31x = 431,928,981.65
  5. Step 5: Solve for x
    x = 431,928,981.65/18,142.31
  6. Step 6: Final answer
    x = 23,807.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.