Home / 31,712.30-47,534.12-20,626.91

Finding the Fourth Proportional to 31,712.30, 47,534.12 and 20,626.91

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Solution

The fourth proportional to 31,712.30, 47,534.12 and 20,626.91 is: 30,918.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,712.30 : 47,534.12 = 20,626.91 : x
  2. Step 2: Convert to fraction form
    31,712.30/47,534.12 = 20,626.91/x
  3. Step 3: Cross multiply
    31,712.30x = 47,534.12 × 20,626.91
  4. Step 4: Simplify right side
    31,712.30x = 980,481,912.03
  5. Step 5: Solve for x
    x = 980,481,912.03/31,712.30
  6. Step 6: Final answer
    x = 30,918.03

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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.