Home / 31,718.64-47,563.05-18,395.42

Finding the Fourth Proportional to 31,718.64, 47,563.05 and 18,395.42

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Solution

The fourth proportional to 31,718.64, 47,563.05 and 18,395.42 is: 27,584.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,718.64 : 47,563.05 = 18,395.42 : x
  2. Step 2: Convert to fraction form
    31,718.64/47,563.05 = 18,395.42/x
  3. Step 3: Cross multiply
    31,718.64x = 47,563.05 × 18,395.42
  4. Step 4: Simplify right side
    31,718.64x = 874,942,192.22
  5. Step 5: Solve for x
    x = 874,942,192.22/31,718.64
  6. Step 6: Final answer
    x = 27,584.48

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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.