Home / 39,282.21-58,932.54-12,986.95

Finding the Fourth Proportional to 39,282.21, 58,932.54 and 12,986.95

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Solution

The fourth proportional to 39,282.21, 58,932.54 and 12,986.95 is: 19,483.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,282.21 : 58,932.54 = 12,986.95 : x
  2. Step 2: Convert to fraction form
    39,282.21/58,932.54 = 12,986.95/x
  3. Step 3: Cross multiply
    39,282.21x = 58,932.54 × 12,986.95
  4. Step 4: Simplify right side
    39,282.21x = 765,353,950.35
  5. Step 5: Solve for x
    x = 765,353,950.35/39,282.21
  6. Step 6: Final answer
    x = 19,483.47

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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.