Home / 39,297.96-58,957.88-21,780.09

Finding the Fourth Proportional to 39,297.96, 58,957.88 and 21,780.09

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Solution

The fourth proportional to 39,297.96, 58,957.88 and 21,780.09 is: 32,676.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,297.96 : 58,957.88 = 21,780.09 : x
  2. Step 2: Convert to fraction form
    39,297.96/58,957.88 = 21,780.09/x
  3. Step 3: Cross multiply
    39,297.96x = 58,957.88 × 21,780.09
  4. Step 4: Simplify right side
    39,297.96x = 1,284,107,823.71
  5. Step 5: Solve for x
    x = 1,284,107,823.71/39,297.96
  6. Step 6: Final answer
    x = 32,676.20

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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.