Home / 31,334.03-47,017.21-20,811.32

Finding the Fourth Proportional to 31,334.03, 47,017.21 and 20,811.32

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Solution

The fourth proportional to 31,334.03, 47,017.21 and 20,811.32 is: 31,227.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,334.03 : 47,017.21 = 20,811.32 : x
  2. Step 2: Convert to fraction form
    31,334.03/47,017.21 = 20,811.32/x
  3. Step 3: Cross multiply
    31,334.03x = 47,017.21 × 20,811.32
  4. Step 4: Simplify right side
    31,334.03x = 978,490,202.82
  5. Step 5: Solve for x
    x = 978,490,202.82/31,334.03
  6. Step 6: Final answer
    x = 31,227.72

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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.