Home / 39,749-59,651.58-18,974.12

Finding the Fourth Proportional to 39,749, 59,651.58 and 18,974.12

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Solution

The fourth proportional to 39,749, 59,651.58 and 18,974.12 is: 28,474.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,749 : 59,651.58 = 18,974.12 : x
  2. Step 2: Convert to fraction form
    39,749/59,651.58 = 18,974.12/x
  3. Step 3: Cross multiply
    39,749x = 59,651.58 × 18,974.12
  4. Step 4: Simplify right side
    39,749x = 1,131,836,237.11
  5. Step 5: Solve for x
    x = 1,131,836,237.11/39,749
  6. Step 6: Final answer
    x = 28,474.58

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1.5x scale

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.