Home / 31,638.03-43,606.57-28,956.62

Finding the Fourth Proportional to 31,638.03, 43,606.57 and 28,956.62

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Solution

The fourth proportional to 31,638.03, 43,606.57 and 28,956.62 is: 39,910.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,638.03 : 43,606.57 = 28,956.62 : x
  2. Step 2: Convert to fraction form
    31,638.03/43,606.57 = 28,956.62/x
  3. Step 3: Cross multiply
    31,638.03x = 43,606.57 × 28,956.62
  4. Step 4: Simplify right side
    31,638.03x = 1,262,698,876.99
  5. Step 5: Solve for x
    x = 1,262,698,876.99/31,638.03
  6. Step 6: Final answer
    x = 39,910.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.