Home / 39,809.18-59,704.15-11,721.59

Finding the Fourth Proportional to 39,809.18, 59,704.15 and 11,721.59

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Solution

The fourth proportional to 39,809.18, 59,704.15 and 11,721.59 is: 17,579.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,809.18 : 59,704.15 = 11,721.59 : x
  2. Step 2: Convert to fraction form
    39,809.18/59,704.15 = 11,721.59/x
  3. Step 3: Cross multiply
    39,809.18x = 59,704.15 × 11,721.59
  4. Step 4: Simplify right side
    39,809.18x = 699,827,567.60
  5. Step 5: Solve for x
    x = 699,827,567.60/39,809.18
  6. Step 6: Final answer
    x = 17,579.55

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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.