Home / 41,780.64-62,638.09-20,706.20

Finding the Fourth Proportional to 41,780.64, 62,638.09 and 20,706.20

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Solution

The fourth proportional to 41,780.64, 62,638.09 and 20,706.20 is: 31,043.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,780.64 : 62,638.09 = 20,706.20 : x
  2. Step 2: Convert to fraction form
    41,780.64/62,638.09 = 20,706.20/x
  3. Step 3: Cross multiply
    41,780.64x = 62,638.09 × 20,706.20
  4. Step 4: Simplify right side
    41,780.64x = 1,296,996,819.16
  5. Step 5: Solve for x
    x = 1,296,996,819.16/41,780.64
  6. Step 6: Final answer
    x = 31,043.01

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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.