Home / 31,513.80-47,292.30-13,996.20

Finding the Fourth Proportional to 31,513.80, 47,292.30 and 13,996.20

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Solution

The fourth proportional to 31,513.80, 47,292.30 and 13,996.20 is: 21,003.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,513.80 : 47,292.30 = 13,996.20 : x
  2. Step 2: Convert to fraction form
    31,513.80/47,292.30 = 13,996.20/x
  3. Step 3: Cross multiply
    31,513.80x = 47,292.30 × 13,996.20
  4. Step 4: Simplify right side
    31,513.80x = 661,912,489.26
  5. Step 5: Solve for x
    x = 661,912,489.26/31,513.80
  6. Step 6: Final answer
    x = 21,003.89

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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.