Home / 31,946.10-47,928.41-13,222.68

Finding the Fourth Proportional to 31,946.10, 47,928.41 and 13,222.68

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Solution

The fourth proportional to 31,946.10, 47,928.41 and 13,222.68 is: 19,837.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,946.10 : 47,928.41 = 13,222.68 : x
  2. Step 2: Convert to fraction form
    31,946.10/47,928.41 = 13,222.68/x
  3. Step 3: Cross multiply
    31,946.10x = 47,928.41 × 13,222.68
  4. Step 4: Simplify right side
    31,946.10x = 633,741,962.23
  5. Step 5: Solve for x
    x = 633,741,962.23/31,946.10
  6. Step 6: Final answer
    x = 19,837.85

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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.