Home / 39,819.50-59,729.25-12,117.50

Finding the Fourth Proportional to 39,819.50, 59,729.25 and 12,117.50

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Solution

The fourth proportional to 39,819.50, 59,729.25 and 12,117.50 is: 18,176.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,819.50 : 59,729.25 = 12,117.50 : x
  2. Step 2: Convert to fraction form
    39,819.50/59,729.25 = 12,117.50/x
  3. Step 3: Cross multiply
    39,819.50x = 59,729.25 × 12,117.50
  4. Step 4: Simplify right side
    39,819.50x = 723,769,186.88
  5. Step 5: Solve for x
    x = 723,769,186.88/39,819.50
  6. Step 6: Final answer
    x = 18,176.25

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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.