Home / 31,372.38-47,022.10-11,638.35

Finding the Fourth Proportional to 31,372.38, 47,022.10 and 11,638.35

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Solution

The fourth proportional to 31,372.38, 47,022.10 and 11,638.35 is: 17,443.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,372.38 : 47,022.10 = 11,638.35 : x
  2. Step 2: Convert to fraction form
    31,372.38/47,022.10 = 11,638.35/x
  3. Step 3: Cross multiply
    31,372.38x = 47,022.10 × 11,638.35
  4. Step 4: Simplify right side
    31,372.38x = 547,259,628.44
  5. Step 5: Solve for x
    x = 547,259,628.44/31,372.38
  6. Step 6: Final answer
    x = 17,443.99

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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.