Home / 31,886.57-47,806.05-21,997.64

Finding the Fourth Proportional to 31,886.57, 47,806.05 and 21,997.64

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Solution

The fourth proportional to 31,886.57, 47,806.05 and 21,997.64 is: 32,980.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,886.57 : 47,806.05 = 21,997.64 : x
  2. Step 2: Convert to fraction form
    31,886.57/47,806.05 = 21,997.64/x
  3. Step 3: Cross multiply
    31,886.57x = 47,806.05 × 21,997.64
  4. Step 4: Simplify right side
    31,886.57x = 1,051,620,277.72
  5. Step 5: Solve for x
    x = 1,051,620,277.72/31,886.57
  6. Step 6: Final answer
    x = 32,980.04

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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.