Home / 31,745.28-47,619.84-13,271.04

Finding the Fourth Proportional to 31,745.28, 47,619.84 and 13,271.04

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Solution

The fourth proportional to 31,745.28, 47,619.84 and 13,271.04 is: 19,907.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,745.28 : 47,619.84 = 13,271.04 : x
  2. Step 2: Convert to fraction form
    31,745.28/47,619.84 = 13,271.04/x
  3. Step 3: Cross multiply
    31,745.28x = 47,619.84 × 13,271.04
  4. Step 4: Simplify right side
    31,745.28x = 631,964,801.43
  5. Step 5: Solve for x
    x = 631,964,801.43/31,745.28
  6. Step 6: Final answer
    x = 19,907.36

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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.