Home / 39,821.60-59,741.03-12,118.88

Finding the Fourth Proportional to 39,821.60, 59,741.03 and 12,118.88

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Solution

The fourth proportional to 39,821.60, 59,741.03 and 12,118.88 is: 18,180.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,821.60 : 59,741.03 = 12,118.88 : x
  2. Step 2: Convert to fraction form
    39,821.60/59,741.03 = 12,118.88/x
  3. Step 3: Cross multiply
    39,821.60x = 59,741.03 × 12,118.88
  4. Step 4: Simplify right side
    39,821.60x = 723,994,105.24
  5. Step 5: Solve for x
    x = 723,994,105.24/39,821.60
  6. Step 6: Final answer
    x = 18,180.94

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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.