Home / 39,823.50-59,735.25-12,121.50

Finding the Fourth Proportional to 39,823.50, 59,735.25 and 12,121.50

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Solution

The fourth proportional to 39,823.50, 59,735.25 and 12,121.50 is: 18,182.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,823.50 : 59,735.25 = 12,121.50 : x
  2. Step 2: Convert to fraction form
    39,823.50/59,735.25 = 12,121.50/x
  3. Step 3: Cross multiply
    39,823.50x = 59,735.25 × 12,121.50
  4. Step 4: Simplify right side
    39,823.50x = 724,080,832.88
  5. Step 5: Solve for x
    x = 724,080,832.88/39,823.50
  6. Step 6: Final answer
    x = 18,182.25

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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.