Home / 39,664.20-59,480.85-19,929

Finding the Fourth Proportional to 39,664.20, 59,480.85 and 19,929

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Solution

The fourth proportional to 39,664.20, 59,480.85 and 19,929 is: 29,885.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,664.20 : 59,480.85 = 19,929 : x
  2. Step 2: Convert to fraction form
    39,664.20/59,480.85 = 19,929/x
  3. Step 3: Cross multiply
    39,664.20x = 59,480.85 × 19,929
  4. Step 4: Simplify right side
    39,664.20x = 1,185,393,859.65
  5. Step 5: Solve for x
    x = 1,185,393,859.65/39,664.20
  6. Step 6: Final answer
    x = 29,885.74

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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.