Home / 39,818.50-59,727.75-12,116.50

Finding the Fourth Proportional to 39,818.50, 59,727.75 and 12,116.50

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Solution

The fourth proportional to 39,818.50, 59,727.75 and 12,116.50 is: 18,174.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,818.50 : 59,727.75 = 12,116.50 : x
  2. Step 2: Convert to fraction form
    39,818.50/59,727.75 = 12,116.50/x
  3. Step 3: Cross multiply
    39,818.50x = 59,727.75 × 12,116.50
  4. Step 4: Simplify right side
    39,818.50x = 723,691,282.88
  5. Step 5: Solve for x
    x = 723,691,282.88/39,818.50
  6. Step 6: Final answer
    x = 18,174.75

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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.