Home / 39,819.84-59,729.76-16,420.56

Finding the Fourth Proportional to 39,819.84, 59,729.76 and 16,420.56

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Solution

The fourth proportional to 39,819.84, 59,729.76 and 16,420.56 is: 24,630.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,819.84 : 59,729.76 = 16,420.56 : x
  2. Step 2: Convert to fraction form
    39,819.84/59,729.76 = 16,420.56/x
  3. Step 3: Cross multiply
    39,819.84x = 59,729.76 × 16,420.56
  4. Step 4: Simplify right side
    39,819.84x = 980,796,107.87
  5. Step 5: Solve for x
    x = 980,796,107.87/39,819.84
  6. Step 6: Final answer
    x = 24,630.84

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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.